Hayder Albattat - Academia.edu (original) (raw)

Papers by Hayder Albattat

Nucleation and Atmospheric Aerosols, 2023

While the Fifth generation (5G) brought attention to it with promises of extremely high bit rates... more While the Fifth generation (5G) brought attention to it with promises of extremely high bit rates, ultra-reliable low latency connections, and a more uniform user experience, the new generation of wireless communication (5G) turned into a hot topic for research about being able to serve massive numbers of mobile users simultaneously. In this paper, we examine the achievable bit rate delivered to near-and-far users using relay technologies, namely the AF and DF technologies, which the users employ. We additionally study Superposition-Coding (SC) and Successive-Interference-Cancelation (SIC) in the Base Station (BS) and receivers on both ends of the connection to determine how SC-derived signals are recovered. To transmit the message, a model is implanted with Additive White Gaussian Noise (AWGN) to mimic the amount of noise in the environment. SIC is applied on both devices, and diverse outcomes are obtained, which may be advantageous for overcoming the noise. The findings demonstrate that Cooperative Non-Orthogonal Multiple Access C-NOMA and the Bit-Error-Rate (BER) are better when used together than when used separately. In the end, orthogonal multiple access (OMA) vs. non-orthogonal multiple access (NOMA) comparison is done to aid with a clear understanding of the BER for both of the systems.

Nucleation and Atmospheric Aerosols, 2023

Kufa Journal of Engineering

This paper presents two reconfigurable microstrip antennas with different sizes of the patch elem... more This paper presents two reconfigurable microstrip antennas with different sizes of the patch elements for Cogniative Radio (CR) network. The desired resonant frequencies can be controlled by using smart tunable permittivity materials. The switching among these frequencies depending on the CR requierments. A wide tunability range  of switching frequencies covers the bands of Wi-Fi and Wi-Max standards are obtained. This rang of frequencies begin from 1.5 till 5.5 GHz. Variable permittivity concept with respect to (as a function of) external source has been assummed for switching through this study. The two geometry structures for the planner array antenna are investigated and simulated using COMSOL sofware.

INTERNATIONAL CONFERENCE OF NUMERICAL ANALYSIS AND APPLIED MATHEMATICS ICNAAM 2019

International Journal of Computing and Digital Systems

In this study, a linear and phase-based Eulerian video magnification (EVM) methods are developed ... more In this study, a linear and phase-based Eulerian video magnification (EVM) methods are developed to minimize magnified noises and processing time. The developed approaches utilize the Lanczos resampling algorithm to reduce the frames' size of the source video so that the size of the processed data is significantly reduced. Then spatial decomposition is applied to the resized frames. Subsequently, temporal filters with specific cutoff frequencies are also used to filter only the desired frequencies to be amplified and then add them to the decomposed frames. The magnified frames are processed by a wavelet denoising algorithm to locate distributed noise over the different frequency bands and then remove it. The resulted denoised-magnified frames are resized up and then reconstructed by the spatial synthesis process. The experiments show the superiority and effectiveness of the developed EVM approaches compared to the conventional ones and other related approaches in terms of the execution time and the quality of the magnified video. The developed EVM approach can be used in several applications such as the detection of human vital signs without contact so that it is very useful to avoid infection in several diseases such as Covid-19. Furthermore, it can be used in detection of human mood and lying detection, detection and localization of material and liquid variations.

AIP Conference Proceedings

The new generation of wireless communication 5G brought a lot of attention to it by promising ver... more The new generation of wireless communication 5G brought a lot of attention to it by promising very high bit rates, ultra-reliable low latency connections and an enhanced uniform user experience making it a hot topic for research. In this paper we study the achievable bit rate delivered to the near and far users by means of relay techniques, specifically named the AF and DF techniques, used by the users, while using Superposition Coding (SC) in the Base Station (BS) and utilizing the Successive Interference Canceling (SIC) in the receiver side of both devices to reconstruct the signal back. The noise in the environment puts a great stall for the message to be delivered to the user; so a model is implanted utilizing AWGN to simulate an environment filled with noise. To overcome the noise, an implementation of SIC is done at both devices and by applying both of the relay techniques on both users, various results are obtained. The results show that the bit rate using C-NOMA and the Bit Error Rate (BER) are better than that without using the first user as a relay for both of AF and DF techniques.

AIP Conference Proceedings

While the Fifth generation (5G) brought attention to it with promises of extremely high bit rates... more While the Fifth generation (5G) brought attention to it with promises of extremely high bit rates, ultra-reliable low latency connections, and a more uniform user experience, the new generation of wireless communication (5G) turned into a hot topic for research about being able to serve massive numbers of mobile users simultaneously. In this paper, we examine the achievable bit rate delivered to near-and-far users using relay technologies, namely the AF and DF technologies, which the users employ. We additionally study Superposition-Coding (SC) and Successive-Interference-Cancelation (SIC) in the Base Station (BS) and receivers on both ends of the connection to determine how SC-derived signals are recovered. To transmit the message, a model is implanted with Additive White Gaussian Noise (AWGN) to mimic the amount of noise in the environment. SIC is applied on both devices, and diverse outcomes are obtained, which may be advantageous for overcoming the noise. The findings demonstrate that Cooperative Non-Orthogonal Multiple Access C-NOMA and the Bit-Error-Rate (BER) are better when used together than when used separately. In the end, orthogonal multiple access (OMA) vs. non-orthogonal multiple access (NOMA) comparison is done to aid with a clear understanding of the BER for both of the systems.

Al-Qadisiyah Journal for Engineering Sciences, 2018

In latest years the progress and employment of wearable antennas have developed quickly for human... more In latest years the progress and employment of wearable antennas have developed quickly for human monitoring applications. Due to shrink of wireless communication equipment reasons, the microstrip patch antennas with size-reduced are preferred. In this paper, two wearable antennas with different shapes (similar to the button) are introduced. These are compatible for a commercial wireless system platforms such WiFi and WiMax standards. The proposed antennas are very suitable for child indoor monitoring purposes. Here, because of the small size of these antennas (the largest dimension approaches to 25 mm), the assumption of bending the surface, substrate and ground layer are neglected. The operation frequency band for the first antenna is between 5.4 and 5.6 GHz, while its between 3.6 to 3.8 GHz for the second and both with a linearly polarized radiation. For a wearable antenna, a conductive textile was used for the substrate layer, a permittivity of 4.4 is used. A 52% size reduction result of the rose patch size (the 2 nd antenna) compared to the size of a regular rectangular patch antenna (the 1 st antenna) additionally, investigations had been conducted for different antenna without bending and the antenna's performance in vicinity to human body. The proficient multiphasic COMSOL software is used for simulation.

This paper outlines the use of a balance truncation algorithm to design low order infinite impuls... more This paper outlines the use of a balance truncation algorithm to design low order infinite impulse response (IIR) interpolator for pilot symbol assisted modulation. A state space model is developed to optimize filter coefficients. The proposed design for the filter has a frequency response is quite stable. This approach is highly beneficial for systems employing fading channel estimation. A comparison is given for the achieved results to that with ideal case.

Indonesian Journal of Electrical Engineering and Computer Science, 2021

The technology of radio over fiber (RoF) regard a crucial point to solve problems in wireless com... more The technology of radio over fiber (RoF) regard a crucial point to solve problems in wireless communication system. As well as, the growth of internet applications also reveals a tremendous increase in bandwidth for different applications. Therefore, the development of optical networks is very important that have maximum bandwidth by using different multiple access techniques. Optical code division multiple access (OCDMA) technique has considered as a good solution for high bandwidth network. Hybrid optical systems of OCDMA and time division multiplexing (OTDM) has been proposed in this paper to increase the number of simultaneous users. The results of hybrid OCDMA and OTDM system demonstrate that this system can make a considerable increase in the network scalability while ensuring sufficient data rate and an acceptable bit error rate. Where M-user OCDMA signals can be transmitted in different channels of an OTDM system. Due to its wide band facility compared with other access tech...

2019 4th Scientific International Conference Najaf (SICN), 2019

Video processing techniques become major role with the wildly spread of smartphones and other new... more Video processing techniques become major role with the wildly spread of smartphones and other new technologies. One of the high impact video processing is a magnification. Magnification refers to amplify a region or special bands of video frames in order to detect subtle information. The famous approach to achieve magnification is Eulerian-based. This paper proposes a developed approach for a phase-based Eulerian video magnification (PB-EVM) in order to reduce the processing time. The proposed approach reduces the processed data in PB-EVM by resizing-down the source video size with maintaining the video quality. Subsequently, the resulted video is decomposed using complex steerable pyramid. Then, the decomposed video is entered to temporal filters in order to pass only specific frequency bands, and then amplified the energy of these bands by multiplying by magnification factor. Finally, the video magnified video is reconstructed by steerable pyramid and resizing-up to come back to the original video size. The experimental results of the proposed approach show that there is a 60–65% reduction in the execution time compare to the conventional PB-EVM. Furthermore, the magnified video quality is maintained as it in the conventional PB-EVM.

Journal of Physics: Conference Series, 2021

Most previous works regarding the impedance compression network ICNs reported in the literature c... more Most previous works regarding the impedance compression network ICNs reported in the literature consist of dual branches to carry out the compression functionalities. Although this type of circuits are efficient, they are complex and have large sizes. This work proposes a complex impedance compression network with only a single branch for wireless power transfer (WPT) circuits, operating at 2.4GHz under a wide input power range and a variable load. The design size is about 4x4.2mm2 which thereby, produces a simple, and small design. The simulation results demonstrate that the improvement in efficiency is by 10%, as compared to a design without ICN. The improvement can increased by utilizing the particle swarm optimization PSO algorithm where the best dimensions of the ICN components will be selected relying on the suitable fitness function in the PSO algorithm to the given desired goals. The impedance matching is also enhanced in which it stands behind the conversion efficiency incr...

TELKOMNIKA (Telecommunication Computing Electronics and Control), 2020

This paper proposes a modification approach for phased-based EVM in order to reduce the processin... more This paper proposes a modification approach for phased-based EVM in order to reduce the processing time without effect the quality of the magnified video. The proposed approach applies a resizing process on the input video using Lanczos-3 algorithm. Then, it decomposes video frames using steerable pyramid to obtain multi-scale frame with its orientation. Subsequently, the resulted frames are filtered by temporal filters for specific bands and the filtered frames are multiplied by a magnification factor. Now, both the magnified regions and the unmagnified regions for each frame are added together. Finally, reconstructing the produced magnified multi-scale frames using the inverse steerable pyramid. The experimental results show that superiority of the proposed approach compares to the conventional phase-based EVM in processing time, where the processing time reduction about 60-65%. Furthermore, this approach does not affect on the video quality, which maintain it in the boundary of the conventional Phase-based EVM.

Al-Qadisiyah Journal for Engineering Sciences, 2020

Stopband split ring resonator (SSRR) is presented in this paper for measuring complex permittivit... more Stopband split ring resonator (SSRR) is presented in this paper for measuring complex permittivity of liquid with different position of microfluidic channel operates at resonant frequency of 1 GHz. The sensor was fabricated and microfluidic channel is located in the gap groove with two different positions of the carrier where the electric field is as large as possible. The sensor has been tested with several solvents to verify its sensitivity where the electric field interacts with the liquid filled in a quartz tube and hence alter the SRR behavior. The electromagnetic properties (complex permittivity) of the solvent can be extracted from shift in the resonant frequency of the resonator due to perturbation phenomenon.

International Journal of Electrical and Computer Engineering (IJECE), 2020

Digital video magnification is a computer-based microscope, which is useful to detect subtle chan... more Digital video magnification is a computer-based microscope, which is useful to detect subtle changes to human eyes in recorded videos. This technology can be employed in several areas such as medical, biological, mechanical and physical applications. Eulerian is the most popular approach in video magnification. However, amplifying the subtle changes in video produces amplifying the subtle noise. This paper proposes an approach to reduce amplified noise in magnified video for both type of changes amplifications, color and motion. The proposed approach processes the resulted video from Eulerian algorithm whether linear or phase based in order to noise cancellation. The approach utilizes wavelet denoising method to localize the frequencies of distributed noise over the different frequency bands. Subsequently, the energy of the coefficients under localized frequencies are attenuated by attenuating the amplitude of these coefficients. The experimental results of the proposed approach sho...

Al-Furat Journal of Innovations in Electronics and Computer Engineering, 2020

a microwave microfluidic microstrip spilt ring resonator is presented in this paper for liquid se... more a microwave microfluidic microstrip spilt ring resonator is presented in this paper for liquid sensing and characterization. The sensor is designed to operate at frequency of 1.4 GHz and quality factor of 360. The sensor has been tested with several solvents to verify its sensitivity where the resonant frequency and losses vary with each solvent. The shift in the resonant frequency and the change in the insertion loss have been used to extract the values of the complex permittivity of the solvent. The measured complex permittivities of the solvents have been compared with the theoretical values with very good agreement. This sensor can be utilized in many industrial and medical application where the characterization of liquids are needed.

Al-Furat Journal of Innovations in Electronics and Computer Engineering, 2020

In this paper, a reconfigurable bandpass filter based on meander open loop resonators called spli... more In this paper, a reconfigurable bandpass filter based on meander open loop resonators called split ring resonators (SRRs) in square shapes is proposed. The proposed filter is able to tune its centre frequency and bandwidth by changing DC voltages applied to varactor diodes loaded on SRRs simultaneously. Two groups of varactor diodes are placed where the equivalent electrical length and electrical coupling can be effectively influenced. The first group of varactor diodes is attached to open ends of SRRs to obtain variable electrical lengths, leading to a tunable resonant frequency, while the second group is inserted between the two SRRs as a step to store more electrical energy which in turn leads to govern the required bandwidth freely. Consequently, the proposed filter can vary its centre frequency and bandwidth independently. All diodes utilized in the proposed design are reverse biased to get a wide range of variable capacitance. The microstrip technology is adopted in all simulation and fabrication. The substrate used in the fabrication is a FR4 with dielectric constant 4.5 and thickness 1.5mm. The filter response has two transmission zeros located below and above the passband to improve the filter selectivity due to asymmetrical locations of feeding lines. The proposed filter has been designed, simulated, fabricated, and measured where both the measured and simulated results are in good agreement. However, only a filter with static response is manufactured because the required equipment is not available. The two coupled SRRs generate second order responses. The tuning range of bandwidth from 404MHz to 960MHz has been achieved, while the centre resonant frequency is widely changed from 0.92GHz to 2.06GHz to cover the most important wireless applications.

Al-Furat Journal of Innovations in Electronics and Computer Engineering, 2020

Heterogeneous systems merging a different wireless networks to provide a maximum system capacity ... more Heterogeneous systems merging a different wireless networks to provide a maximum system capacity and to improve spectrum efficiency. In the Heterogeneous systems the problem of Resources Allocation (RA) and interference management considered as important challenges to maximize a total system capacity. An Orthogonal Frequency Division Multiplexing (OFDM) cognitive radio network is proposed in this paper to a group of small cells assisted by amplify and forward AF two-way relays, with perfect sensing. The RA and relay selection proposed in this paper as a formulation problem, to maximize the total transmission rate for small cell networks within one macro cell. The genetic algorithm GA used as optimization technique to solve this optimization problem. The results showed the ability of this algorithm to effectively determine the frequency and power values that distributed over 256 levels. To solve the problem of cross-tier interference from macro cell base station to small cell users, a theoretical analysis has been performed to calculate it and which included in calculation the total capacity according to Shannon's theory. All equations have been derived and theoretically calculated in this paper, in addition to getting higher transmission rate.

Indonesian Journal of Electrical Engineering and Computer Science, 2020

Many important subtle changes in the environment are invisible to the naked human eyes. These sub... more Many important subtle changes in the environment are invisible to the naked human eyes. These subtle changes occur because of colour variations, such as blood flow in a human face that leads to face colour change, or motion variations, such as vena movement under human skin and vibration of buildings. The human eye requires optical microscopes to detect these variations. Alternatively, new technologies, such as high-speed imagery and computer processing, can be used to detect these variations. These computerised microscopes depend on computation rather than optical amplification to amplify subtle colour and motion changes in videos. The most popular technique to achieve computation-based microscope is the Eulerian video magnification (EVM). However, several challenges in EVM still need to be solved to meet the requirements of real time and video quality. This paper presents a comprehensive study of EVM methods and reviews the related literature. The strengths and drawbacks of existi...

Nucleation and Atmospheric Aerosols, 2023

While the Fifth generation (5G) brought attention to it with promises of extremely high bit rates... more While the Fifth generation (5G) brought attention to it with promises of extremely high bit rates, ultra-reliable low latency connections, and a more uniform user experience, the new generation of wireless communication (5G) turned into a hot topic for research about being able to serve massive numbers of mobile users simultaneously. In this paper, we examine the achievable bit rate delivered to near-and-far users using relay technologies, namely the AF and DF technologies, which the users employ. We additionally study Superposition-Coding (SC) and Successive-Interference-Cancelation (SIC) in the Base Station (BS) and receivers on both ends of the connection to determine how SC-derived signals are recovered. To transmit the message, a model is implanted with Additive White Gaussian Noise (AWGN) to mimic the amount of noise in the environment. SIC is applied on both devices, and diverse outcomes are obtained, which may be advantageous for overcoming the noise. The findings demonstrate that Cooperative Non-Orthogonal Multiple Access C-NOMA and the Bit-Error-Rate (BER) are better when used together than when used separately. In the end, orthogonal multiple access (OMA) vs. non-orthogonal multiple access (NOMA) comparison is done to aid with a clear understanding of the BER for both of the systems.

Nucleation and Atmospheric Aerosols, 2023

Kufa Journal of Engineering

This paper presents two reconfigurable microstrip antennas with different sizes of the patch elem... more This paper presents two reconfigurable microstrip antennas with different sizes of the patch elements for Cogniative Radio (CR) network. The desired resonant frequencies can be controlled by using smart tunable permittivity materials. The switching among these frequencies depending on the CR requierments. A wide tunability range  of switching frequencies covers the bands of Wi-Fi and Wi-Max standards are obtained. This rang of frequencies begin from 1.5 till 5.5 GHz. Variable permittivity concept with respect to (as a function of) external source has been assummed for switching through this study. The two geometry structures for the planner array antenna are investigated and simulated using COMSOL sofware.

INTERNATIONAL CONFERENCE OF NUMERICAL ANALYSIS AND APPLIED MATHEMATICS ICNAAM 2019

International Journal of Computing and Digital Systems

In this study, a linear and phase-based Eulerian video magnification (EVM) methods are developed ... more In this study, a linear and phase-based Eulerian video magnification (EVM) methods are developed to minimize magnified noises and processing time. The developed approaches utilize the Lanczos resampling algorithm to reduce the frames' size of the source video so that the size of the processed data is significantly reduced. Then spatial decomposition is applied to the resized frames. Subsequently, temporal filters with specific cutoff frequencies are also used to filter only the desired frequencies to be amplified and then add them to the decomposed frames. The magnified frames are processed by a wavelet denoising algorithm to locate distributed noise over the different frequency bands and then remove it. The resulted denoised-magnified frames are resized up and then reconstructed by the spatial synthesis process. The experiments show the superiority and effectiveness of the developed EVM approaches compared to the conventional ones and other related approaches in terms of the execution time and the quality of the magnified video. The developed EVM approach can be used in several applications such as the detection of human vital signs without contact so that it is very useful to avoid infection in several diseases such as Covid-19. Furthermore, it can be used in detection of human mood and lying detection, detection and localization of material and liquid variations.

AIP Conference Proceedings

The new generation of wireless communication 5G brought a lot of attention to it by promising ver... more The new generation of wireless communication 5G brought a lot of attention to it by promising very high bit rates, ultra-reliable low latency connections and an enhanced uniform user experience making it a hot topic for research. In this paper we study the achievable bit rate delivered to the near and far users by means of relay techniques, specifically named the AF and DF techniques, used by the users, while using Superposition Coding (SC) in the Base Station (BS) and utilizing the Successive Interference Canceling (SIC) in the receiver side of both devices to reconstruct the signal back. The noise in the environment puts a great stall for the message to be delivered to the user; so a model is implanted utilizing AWGN to simulate an environment filled with noise. To overcome the noise, an implementation of SIC is done at both devices and by applying both of the relay techniques on both users, various results are obtained. The results show that the bit rate using C-NOMA and the Bit Error Rate (BER) are better than that without using the first user as a relay for both of AF and DF techniques.

AIP Conference Proceedings

While the Fifth generation (5G) brought attention to it with promises of extremely high bit rates... more While the Fifth generation (5G) brought attention to it with promises of extremely high bit rates, ultra-reliable low latency connections, and a more uniform user experience, the new generation of wireless communication (5G) turned into a hot topic for research about being able to serve massive numbers of mobile users simultaneously. In this paper, we examine the achievable bit rate delivered to near-and-far users using relay technologies, namely the AF and DF technologies, which the users employ. We additionally study Superposition-Coding (SC) and Successive-Interference-Cancelation (SIC) in the Base Station (BS) and receivers on both ends of the connection to determine how SC-derived signals are recovered. To transmit the message, a model is implanted with Additive White Gaussian Noise (AWGN) to mimic the amount of noise in the environment. SIC is applied on both devices, and diverse outcomes are obtained, which may be advantageous for overcoming the noise. The findings demonstrate that Cooperative Non-Orthogonal Multiple Access C-NOMA and the Bit-Error-Rate (BER) are better when used together than when used separately. In the end, orthogonal multiple access (OMA) vs. non-orthogonal multiple access (NOMA) comparison is done to aid with a clear understanding of the BER for both of the systems.

Al-Qadisiyah Journal for Engineering Sciences, 2018

In latest years the progress and employment of wearable antennas have developed quickly for human... more In latest years the progress and employment of wearable antennas have developed quickly for human monitoring applications. Due to shrink of wireless communication equipment reasons, the microstrip patch antennas with size-reduced are preferred. In this paper, two wearable antennas with different shapes (similar to the button) are introduced. These are compatible for a commercial wireless system platforms such WiFi and WiMax standards. The proposed antennas are very suitable for child indoor monitoring purposes. Here, because of the small size of these antennas (the largest dimension approaches to 25 mm), the assumption of bending the surface, substrate and ground layer are neglected. The operation frequency band for the first antenna is between 5.4 and 5.6 GHz, while its between 3.6 to 3.8 GHz for the second and both with a linearly polarized radiation. For a wearable antenna, a conductive textile was used for the substrate layer, a permittivity of 4.4 is used. A 52% size reduction result of the rose patch size (the 2 nd antenna) compared to the size of a regular rectangular patch antenna (the 1 st antenna) additionally, investigations had been conducted for different antenna without bending and the antenna's performance in vicinity to human body. The proficient multiphasic COMSOL software is used for simulation.

This paper outlines the use of a balance truncation algorithm to design low order infinite impuls... more This paper outlines the use of a balance truncation algorithm to design low order infinite impulse response (IIR) interpolator for pilot symbol assisted modulation. A state space model is developed to optimize filter coefficients. The proposed design for the filter has a frequency response is quite stable. This approach is highly beneficial for systems employing fading channel estimation. A comparison is given for the achieved results to that with ideal case.

Indonesian Journal of Electrical Engineering and Computer Science, 2021

The technology of radio over fiber (RoF) regard a crucial point to solve problems in wireless com... more The technology of radio over fiber (RoF) regard a crucial point to solve problems in wireless communication system. As well as, the growth of internet applications also reveals a tremendous increase in bandwidth for different applications. Therefore, the development of optical networks is very important that have maximum bandwidth by using different multiple access techniques. Optical code division multiple access (OCDMA) technique has considered as a good solution for high bandwidth network. Hybrid optical systems of OCDMA and time division multiplexing (OTDM) has been proposed in this paper to increase the number of simultaneous users. The results of hybrid OCDMA and OTDM system demonstrate that this system can make a considerable increase in the network scalability while ensuring sufficient data rate and an acceptable bit error rate. Where M-user OCDMA signals can be transmitted in different channels of an OTDM system. Due to its wide band facility compared with other access tech...

2019 4th Scientific International Conference Najaf (SICN), 2019

Video processing techniques become major role with the wildly spread of smartphones and other new... more Video processing techniques become major role with the wildly spread of smartphones and other new technologies. One of the high impact video processing is a magnification. Magnification refers to amplify a region or special bands of video frames in order to detect subtle information. The famous approach to achieve magnification is Eulerian-based. This paper proposes a developed approach for a phase-based Eulerian video magnification (PB-EVM) in order to reduce the processing time. The proposed approach reduces the processed data in PB-EVM by resizing-down the source video size with maintaining the video quality. Subsequently, the resulted video is decomposed using complex steerable pyramid. Then, the decomposed video is entered to temporal filters in order to pass only specific frequency bands, and then amplified the energy of these bands by multiplying by magnification factor. Finally, the video magnified video is reconstructed by steerable pyramid and resizing-up to come back to the original video size. The experimental results of the proposed approach show that there is a 60–65% reduction in the execution time compare to the conventional PB-EVM. Furthermore, the magnified video quality is maintained as it in the conventional PB-EVM.

Journal of Physics: Conference Series, 2021

Most previous works regarding the impedance compression network ICNs reported in the literature c... more Most previous works regarding the impedance compression network ICNs reported in the literature consist of dual branches to carry out the compression functionalities. Although this type of circuits are efficient, they are complex and have large sizes. This work proposes a complex impedance compression network with only a single branch for wireless power transfer (WPT) circuits, operating at 2.4GHz under a wide input power range and a variable load. The design size is about 4x4.2mm2 which thereby, produces a simple, and small design. The simulation results demonstrate that the improvement in efficiency is by 10%, as compared to a design without ICN. The improvement can increased by utilizing the particle swarm optimization PSO algorithm where the best dimensions of the ICN components will be selected relying on the suitable fitness function in the PSO algorithm to the given desired goals. The impedance matching is also enhanced in which it stands behind the conversion efficiency incr...

TELKOMNIKA (Telecommunication Computing Electronics and Control), 2020

This paper proposes a modification approach for phased-based EVM in order to reduce the processin... more This paper proposes a modification approach for phased-based EVM in order to reduce the processing time without effect the quality of the magnified video. The proposed approach applies a resizing process on the input video using Lanczos-3 algorithm. Then, it decomposes video frames using steerable pyramid to obtain multi-scale frame with its orientation. Subsequently, the resulted frames are filtered by temporal filters for specific bands and the filtered frames are multiplied by a magnification factor. Now, both the magnified regions and the unmagnified regions for each frame are added together. Finally, reconstructing the produced magnified multi-scale frames using the inverse steerable pyramid. The experimental results show that superiority of the proposed approach compares to the conventional phase-based EVM in processing time, where the processing time reduction about 60-65%. Furthermore, this approach does not affect on the video quality, which maintain it in the boundary of the conventional Phase-based EVM.

Al-Qadisiyah Journal for Engineering Sciences, 2020

Stopband split ring resonator (SSRR) is presented in this paper for measuring complex permittivit... more Stopband split ring resonator (SSRR) is presented in this paper for measuring complex permittivity of liquid with different position of microfluidic channel operates at resonant frequency of 1 GHz. The sensor was fabricated and microfluidic channel is located in the gap groove with two different positions of the carrier where the electric field is as large as possible. The sensor has been tested with several solvents to verify its sensitivity where the electric field interacts with the liquid filled in a quartz tube and hence alter the SRR behavior. The electromagnetic properties (complex permittivity) of the solvent can be extracted from shift in the resonant frequency of the resonator due to perturbation phenomenon.

International Journal of Electrical and Computer Engineering (IJECE), 2020

Digital video magnification is a computer-based microscope, which is useful to detect subtle chan... more Digital video magnification is a computer-based microscope, which is useful to detect subtle changes to human eyes in recorded videos. This technology can be employed in several areas such as medical, biological, mechanical and physical applications. Eulerian is the most popular approach in video magnification. However, amplifying the subtle changes in video produces amplifying the subtle noise. This paper proposes an approach to reduce amplified noise in magnified video for both type of changes amplifications, color and motion. The proposed approach processes the resulted video from Eulerian algorithm whether linear or phase based in order to noise cancellation. The approach utilizes wavelet denoising method to localize the frequencies of distributed noise over the different frequency bands. Subsequently, the energy of the coefficients under localized frequencies are attenuated by attenuating the amplitude of these coefficients. The experimental results of the proposed approach sho...

Al-Furat Journal of Innovations in Electronics and Computer Engineering, 2020

a microwave microfluidic microstrip spilt ring resonator is presented in this paper for liquid se... more a microwave microfluidic microstrip spilt ring resonator is presented in this paper for liquid sensing and characterization. The sensor is designed to operate at frequency of 1.4 GHz and quality factor of 360. The sensor has been tested with several solvents to verify its sensitivity where the resonant frequency and losses vary with each solvent. The shift in the resonant frequency and the change in the insertion loss have been used to extract the values of the complex permittivity of the solvent. The measured complex permittivities of the solvents have been compared with the theoretical values with very good agreement. This sensor can be utilized in many industrial and medical application where the characterization of liquids are needed.

Al-Furat Journal of Innovations in Electronics and Computer Engineering, 2020

In this paper, a reconfigurable bandpass filter based on meander open loop resonators called spli... more In this paper, a reconfigurable bandpass filter based on meander open loop resonators called split ring resonators (SRRs) in square shapes is proposed. The proposed filter is able to tune its centre frequency and bandwidth by changing DC voltages applied to varactor diodes loaded on SRRs simultaneously. Two groups of varactor diodes are placed where the equivalent electrical length and electrical coupling can be effectively influenced. The first group of varactor diodes is attached to open ends of SRRs to obtain variable electrical lengths, leading to a tunable resonant frequency, while the second group is inserted between the two SRRs as a step to store more electrical energy which in turn leads to govern the required bandwidth freely. Consequently, the proposed filter can vary its centre frequency and bandwidth independently. All diodes utilized in the proposed design are reverse biased to get a wide range of variable capacitance. The microstrip technology is adopted in all simulation and fabrication. The substrate used in the fabrication is a FR4 with dielectric constant 4.5 and thickness 1.5mm. The filter response has two transmission zeros located below and above the passband to improve the filter selectivity due to asymmetrical locations of feeding lines. The proposed filter has been designed, simulated, fabricated, and measured where both the measured and simulated results are in good agreement. However, only a filter with static response is manufactured because the required equipment is not available. The two coupled SRRs generate second order responses. The tuning range of bandwidth from 404MHz to 960MHz has been achieved, while the centre resonant frequency is widely changed from 0.92GHz to 2.06GHz to cover the most important wireless applications.

Al-Furat Journal of Innovations in Electronics and Computer Engineering, 2020

Heterogeneous systems merging a different wireless networks to provide a maximum system capacity ... more Heterogeneous systems merging a different wireless networks to provide a maximum system capacity and to improve spectrum efficiency. In the Heterogeneous systems the problem of Resources Allocation (RA) and interference management considered as important challenges to maximize a total system capacity. An Orthogonal Frequency Division Multiplexing (OFDM) cognitive radio network is proposed in this paper to a group of small cells assisted by amplify and forward AF two-way relays, with perfect sensing. The RA and relay selection proposed in this paper as a formulation problem, to maximize the total transmission rate for small cell networks within one macro cell. The genetic algorithm GA used as optimization technique to solve this optimization problem. The results showed the ability of this algorithm to effectively determine the frequency and power values that distributed over 256 levels. To solve the problem of cross-tier interference from macro cell base station to small cell users, a theoretical analysis has been performed to calculate it and which included in calculation the total capacity according to Shannon's theory. All equations have been derived and theoretically calculated in this paper, in addition to getting higher transmission rate.

Indonesian Journal of Electrical Engineering and Computer Science, 2020

Many important subtle changes in the environment are invisible to the naked human eyes. These sub... more Many important subtle changes in the environment are invisible to the naked human eyes. These subtle changes occur because of colour variations, such as blood flow in a human face that leads to face colour change, or motion variations, such as vena movement under human skin and vibration of buildings. The human eye requires optical microscopes to detect these variations. Alternatively, new technologies, such as high-speed imagery and computer processing, can be used to detect these variations. These computerised microscopes depend on computation rather than optical amplification to amplify subtle colour and motion changes in videos. The most popular technique to achieve computation-based microscope is the Eulerian video magnification (EVM). However, several challenges in EVM still need to be solved to meet the requirements of real time and video quality. This paper presents a comprehensive study of EVM methods and reviews the related literature. The strengths and drawbacks of existi...