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Papers by Qadri Hamarsheh

International Journal of Circuits, Systems and Signal Processing

This article proposes an ECG (electrocardiography) database system based on linear filtering, wav... more This article proposes an ECG (electrocardiography) database system based on linear filtering, wavelet transform, PSD analysis, and adaptive AR modeling technologies to distinguish 19 ECG beat types for classification. This paper uses the Savitzky-Golay filter and wavelet transform for noise reduction, and wavelet analysis and AR modeling techniques for feature extraction to design a database system of AR coefficients describing the ECG signals with different arrhythmia types. In the experimental part of this work, the proposed algorithm performance is evaluated using an ECG dataset containing 19 different types including normal sinus rhythm, atrial premature contraction, ventricular premature contraction, ventricular tachycardia, ventricular fibrillation, supraventricular tachycardia, and other types from the MIT-BIH Arrhythmia Database. The simulation is performed in a MATLAB environment.

Wireless Personal Communications

Future Internet

The interest in vehicle-to-vehicle communication has gained a high demand in the last decade. Thi... more The interest in vehicle-to-vehicle communication has gained a high demand in the last decade. This is due to the need for safe and robust smart communication, while this type of communication is vulnerable to latency and power. Therefore, this work proposes the Narrowband Internet-of-Things to enhance the robustness of the vehicular communication system. Accordingly, the system’s QoS is enhanced. This enhancement is based on proposing two parts to cover the latency and the harmonics issues, in addition to proposing a distributed antenna configuration for the moving vehicles under a machine learning benchmark, which uses the across-entropy algorithm. The proposed environment has been simulated and compared to the state-of-the-art work performance. The simulation results verify the proposed work performance based on three different parameters; namely the latency, the mean squared error rate, and the transmitted signal block error rate. From these results, the proposed work outperforms...

2022 19th International Multi-Conference on Systems, Signals & Devices (SSD)

Vehicle to Vehicle communication is one of the more emerging technologies in the 21st century eit... more Vehicle to Vehicle communication is one of the more emerging technologies in the 21st century either from the comfortable transportation or safer transportation point of view. Vehicle to Vehicle communication has one crucial factor which is the huge information to be shared among vehicles, such as the position, the road data. In such situation, the accurate information sharing process is the most important factor in order to make the vehicles operating in the most feasible way. This work proposes a more robust vehicle communication system to make the existing vehicle transportation system more efficient. In this paper, we propose a fast frequency hopping orthogonal frequency division multiplexing to mitigate the Doppler spread effect on our previously published clustering benchmark. This benchmark contains both of a clustering weighting factor based stage and a multiparallel processing stage. This is in addition to modify the PHY layer of the existing IEEE 802.11p standard in order ...

International Journal of Wireless & Mobile Networks, 2016

2018 15th International Multi-Conference on Systems, Signals & Devices (SSD), 2018

This work deals with the enhancement of one of the main techniques that is used widely in number ... more This work deals with the enhancement of one of the main techniques that is used widely in number of communications systems these days; Orthogonal Frequency Division Multiplex (OFDM). Its powerfulness comes from improving the system's data rates even under harsh channels conditions by making use of the Inverse Fast Fourier Transform (IFFT) idea. However, it suffers from different drawbacks, which make it intrinsically obstinate, such as the Peak-to-Average Power Ratio (PAPR) and synchronization issues. Thus, an analysis of an alternative work will be provided in this work based on the wavelet transforms; wavelet packet transforms-based Daubechies 4 will be analyzed and compared to our previously published work in order to increase the OFDM-based work flexibilities. This comparison will be based on the bit error rates (BER) and exceeding the PAPR values a certain threshold. A MATLAB simulation has been performed in order to verify the reliability of the proposition in order to rep...

This paper focuses on constructing efficient algorithms of the main DSP discrete procedures: conv... more This paper focuses on constructing efficient algorithms of the main DSP discrete procedures: convolution, correlation functions and filtering of signals based on discrete cosine transform (DCTII) and presenting them using unified structure. This structure is very useful in reducing the computational complexity by 3 N 2 − real multiplications and 2 N − real additions in comparison with indirect fast Fourier transforms (FFT) based algorithms calculated through fast cosine transform (FCT). The DCT and its fast calculation ways effectively can be used to calculate convolution, filtering and correlation of signals. For their calculating, the classic schema (two DCT + product of cosine spectrums + IDCT) will be saved.

this work proposes a new algorithm to enhance the performance of the speaker verification over th... more this work proposes a new algorithm to enhance the performance of the speaker verification over the communication systems based Multiple-Input Multiple-Output (MIMO) Orthogonal Frequency Division Multiplexing (OFDM) techniques. The algorithm mainly tackles and overcomes the effect of the high Peak-to-Average Power Ratio problem that is found in OFDM systems, MIMOOFDM combination has been developed to meet the rapidly increment in the users demand such as the ubiquitous transmission, imposing new multimedia applications and wireless services. In this algorithm, wavelets techniques have been used to denoise the affected OFDM symbol by high PAPR values. After that and based on adaptive threshold method the local maxima and minima will be determined and replaced by the average of them and their surrounding neighbors; Denoise OFDM and Replace PAPR (DORP). A system performance investigation process will be accomplished based on both of numerical method and MATLAB simulation. Moreover, a co...

2020 17th International Multi-Conference on Systems, Signals & Devices (SSD), 2020

This paper studies the capability of multi-parallel processing to be accommodated in machine-to-m... more This paper studies the capability of multi-parallel processing to be accommodated in machine-to-machine communications. A testbed convergence between the wireless sensor network and the wireless mobile network is performed. It deals with enhancing wireless mobile network performance. This testbed is divided into three stages; combating the peak-to-average power ratio problem, observing a real data making use of an actual wireless sensors, and proposing a multi-parallel processing communications. The mentioned testbed above is done in a realistic academic environment, where selected signals from those sensors are evaluated. Thus, a design improvement is detailed in terms of the peak-to-average power ratio and the efficient use of the limited resources. In particular, the scope focuses on the mitigation of the nonlinear distortion and its effect on bit error rate. The validation process is attained based on performing an extensive simulation. It is observing some certain performance p...

Int. J. Commun. Syst., 2020

2017 14th International Multi-Conference on Systems, Signals & Devices (SSD), 2017

Terrestrial Digital Video Broadcasting (DVB-T) is considered as one of the main two popular broad... more Terrestrial Digital Video Broadcasting (DVB-T) is considered as one of the main two popular broadcasting standards, which facilitates the transmission of digital television in handheld receivers. In this work, a comparison will be held to enhance the mobile communications performance. This work aims to reduces the effect of a major problem found in the Orthogonal Frequency Division Multiplexing (OFDM) technique, namely Peak-to-Average Power Ratio (PAPR) problem; one of the main drawbacks of. Two main factors will be the main factor of this comparison; BER curves and CCDF curves. This work combined three different stages together; wavelet transformation in order to remove the noise from the signal; a globally statistical adaptive detecting algorithm; and replacing the affected peaks with a moving average filter process. At the same bandwidth occupancy of the speaker verification-based systems, the simulation has been run and shows additional enhancement in both of CCDF and BER curves...

a One of Orthogonal Frequency Division Multiplexing deficiency has been taken into consideration ... more a One of Orthogonal Frequency Division Multiplexing deficiency has been taken into consideration in this work. A proposition has been made to tackle the Peak to Average Power Ratio (PAPR) problem. The proposed work will be based on a special averaging adaptive wavelet transformation (SAAWT) process. It will be compared with two main works that has been published previously; a neural network (NN)-based and a special averaging technique (SAT)-based. In the NN work, the learning process makes use of a previously published work that is based on three linear coding techniques. The proposed work (SAAWT) consists of three main stages; extracting the needed features, de-noising and the optimization criterion. SAAWT has an enhancement over the SAT that will take the noise clearance enhancement into its consideration. It uses 136880 different combinations of de-noising parameters that are experimentally computed to get the most efficient result with respect to the MSE, SNR and PSNR values. A ...

2010 Proceedings of VIth International Conference on Perspective Technologies and Methods in MEMS Design, 2010

This paper suggests architecture for Wireless Gateway Programming Model that consists of building... more This paper suggests architecture for Wireless Gateway Programming Model that consists of building blocks to solve the main WAP Gateway functions. The design of the suggested architecture takes into consideration the technical and business problems of wireless environment. The paper describes various fundamental aspects of the WAP model, the integration of the wireless networks over the internet technologies according to the topics related to the security, caching, state management, etc.