Mary Livinsa - Academia.edu (original) (raw)

Papers by Mary Livinsa

Always an efficient and low complexity reconfigurable filter architecture is required for the cha... more Always an efficient and low complexity reconfigurable filter architecture is required for the channel filters of digital channelizer in Software Defined Radio (SDR). In this paper, a block-based reconfigurable FIR filter is proposed using Distributed Arithmetic (DA) Technique. The complexity of the conventional multiplier is replaced with the DA multiplication process and the throughput of the entire filter is increased by block processing. Memory reuse is also achieved in the proposed direct form systolic FIR filter architecture due to parallel processing. The different bandwidth filters and the corresponding coefficients are stored in the LUTs concerning different channels of the digital channelizer. The proper channel selection is used to choose an appropriate filter and partial products are generated using Offset Binary Coding (OBC). Next, the multiplication process is done by the proposed decomposed LUT-based DA technique in the processing blocks of the filter. The proposed fil...

Research Journal of Pharmacy and Technology, 2020

Brain tumor segmentation in MRI images is one of the challenging tasks in medical field. In this ... more Brain tumor segmentation in MRI images is one of the challenging tasks in medical field. In this work, an efficient brain tumor is detection methodology is proposed for the MRI images. Image preprocessing filters are used to remove noises from the images. Contextual clustering extracts the tumor regions from the images Object labeling is also performed following the contextual clustering. The simulation results show that the proposed technique has achieved 94% of efficiency.

International Journal of Technology, 2019

2022 2nd International Conference on Advance Computing and Innovative Technologies in Engineering (ICACITE)

Journal of Physics: Conference Series, 2021

In day to day life, still the majority of the household having an extremely hectic schedule for c... more In day to day life, still the majority of the household having an extremely hectic schedule for cooking. The time taken to cook food in kitchen is very huge, which formulate them exhausted. Currently the technology has grown and automation process was introduced to society for human welfare. The proposed model of a new automatic cooking machine which is fully automated totally based on Arduino Mega. The fundamental inspiration behind this is to create a modernization in kitchen. Such innovation in kitchen will help reducing human efforts which is extraordinarily favorable to every person. This machine having following functions: pumping raw ingredients into pan, stirring then cooking. Also this machine maintains the quality with quantity of cooking food. The main aim of this model is to create the cooking very simple, trouble-free and a lesser amount of time consuming.

Biomedical Research-tokyo, 2016

The increasing exploitation of wireless sensor devices in Medical diagnostics and patient monitor... more The increasing exploitation of wireless sensor devices in Medical diagnostics and patient monitoring has attracted the researchers in the past few decades. Nowadays, the development of health care systems and infrastructure is one of the most demanding and convincing goals. The monitoring and supervision of patients which has been carried out are often executed manually. This paper provides patient monitoring, tracking and localization through wireless sensor networks. We proposed a novel hybrid localization method based on Time Difference of Arrival and Lagrangian multiplier to locate the position of sensor which provides patient localization for Health Care Support. This system performs the localization out of samples of Time Difference of Arrival, tracking and monitoring module based on accelerometer and low pass filter with oversampling algorithm. Also we have designed a hardware setup for monitoring moving target localization and tracking. The simulation results reveal that the...

2014 IEEE International Conference on Computational Intelligence and Computing Research, 2014

Recent technological developments in Micro-Electro-Mechanical System (MEMS) and communication sys... more Recent technological developments in Micro-Electro-Mechanical System (MEMS) and communication system have made the wireless sensor networks (WSNs) with emerging applications. Localization is the essential research problem in WSNs. In this paper, I have projected Received Signal Strength Indicator (RSSI) and improved Distance vector (DV) localization algorithms for accurate position estimation. The localization error is premeditated for a diverse range of anchor population, communication range and degree of irregularity (DOI). In the simulation, I compare these two localization algorithms and the result shows that the performance of improved DV-Hop algorithm has high position accuracy as compared to the RSSI algorithm.

2019 IEEE International Conference on Innovations in Communication, Computing and Instrumentation (ICCI), 2019

Mobility is an important aspect of life, for day to day responsibilities, taking care of oneself,... more Mobility is an important aspect of life, for day to day responsibilities, taking care of oneself, and for getting through life in general. While most people are blessed with the ability to do so, a few unfortunate ones face a lot of problems, and have to go through life while being assisted in some way or the other by people around them. The main inspiration behind this idea is to minimize the dependability of the visually impaired people, so as to help them move around a little bit easily than usual. This paper proposes a model and a system to navigate through unknown roads with safety and also provides an option of storing the user's location into a cloud for tracking purpose, which could also fight the problem of human trafficking.

Microprocessors and Microsystems, 2021

Background An economical solution and advanced method are provided by dynamic voltage storage (DV... more Background An economical solution and advanced method are provided by dynamic voltage storage (DVR) system for voltage sag in transmission line. Due to the increasing voltage-sensitive equipment use, the issue of voltage savings is becoming one of the significant power quality issues.DVR is used to overcome the problems of power quality issues, unbalanced supply voltage and harmonic distortion. In this study, an efficient Z-DVR with its control technique is presented. Methods DVR using Z-source inverter with Synchronous Reference Frame (SRF) Controller for compensates the voltage sag, and regulates the DC link voltage which protects the transmission from the severe damage. The voltage efficiency of sensitive loads by the use of an improved control scheme in dynamic voltage restorer is improved. Results Conventional control approaches have several limitations, such as high dc time and increasing harmonics, which can be overcome with new impedance-based PLL solutions, allowing the net...

Wireless broadband communication has gained attention due to ever growing demands of multimedia a... more Wireless broadband communication has gained attention due to ever growing demands of multimedia and internet services. The major challenges faced by wireless communication are availability of resources like bandwidth and transmission power. Also the wireless channel suffers from impairments like fading. Frequency Division Multiplexing (FDM) based subcarrier Channel impairments must be mitigated at the receiver by using equalization techniques. In these concept BER performance is minimized improvements of SC-FDMA systems using different equalization techniques such as Zero forcing (ZF), Minimum mean 1 International Journal of Pure and Applied Mathematics Volume 118 No. 24 2018 ISSN: 1314-3395 (on-line version) url: http://www.acadpubl.eu/hub/ Special Issue http://www.acadpubl.eu/hub/

Optimization and Wireless Sensor Networks (WSNs) are mostly used in various atmospheres and antag... more Optimization and Wireless Sensor Networks (WSNs) are mostly used in various atmospheres and antagonistic geographies in recent years. The utmost challenging aspect in WSNs is defining the location of each sensor node, i.e., localization. This paper proposes a localization algorithm by means of Least Square (LS) and Minimum Mean Square Error (MMSE) for with and without obstacle that enhances the fundamental DV-Hop algorithm dramatically. The localization error using the proposed algorithm is calculated and compared with basic DV-Hop, ROCRSSI and APIT. The average localization error for various anchor populations is also compared with Received Signal Strength Indicator (RSSI). The proposed algorithm gives better results for localization estimation even in lesser amount of beacons.

Research Journal of Pharmacy and Technology, 2020

Human beings, wearing hearing prosthetics will have hard time in segregating voice of interest fr... more Human beings, wearing hearing prosthetics will have hard time in segregating voice of interest from background noise in surrounded noisy environment, such that the intelligibility of the hearing prosthetics has to be improved. In this paper, a variable bandwidth band pass filter is proposed so that the intelligibility of the speech will get enhanced. The proposed algorithm is also analyzed in different noisy environments. This work is implemented in LAB View and Field Programmable Gate Arrays.

Research Journal of Pharmacy and Technology, 2020

Recent research is going on about the radio frequency energy harvesting technique or RF harvestin... more Recent research is going on about the radio frequency energy harvesting technique or RF harvesting, we can convert the received RF signals into electricity. This technique becomes a solution to power energy-constrained wireless networks. Whereas, the energy-constrained wireless networks, have a limited lifetime which largely confines the network performance. In contrast, an RF energy harvesting network (RF-EHN) has a power supply. This paper therefore discuss the RF energy harvesting capability that allows the wireless devices to harvest energy from RF signals for processing and also can be transmitting the signal. The increasing demand of RF energy harvesting has introduced commercialized products, like (Power caster and Cota system). This paper proposes a Genetic algorithm based Multi coil (MC) optimization technique to optimize the circuit design of a WPT system.

Research Journal of Pharmacy and Technology, 2019

This article explores the legal bases of autonomy in peacekeeping and whether it has developed to... more This article explores the legal bases of autonomy in peacekeeping and whether it has developed to such an extent that there are signs of a self-referential legal order governing peacekeeping, separate from other legal orders. Given that it will be shown that the principles governing peacekeeping are derived from general international law, there must be a presumption against there being a self-referential legal order, but the possibility that there has been a significant development of specific principles and rules will be explored. Moreover, this development may have occurred to such an extent that although the original source may remain in international law, a separate legal order has emerged. If the norms of that legal order no longer reflect the wider principles of international law then concerns revolve not only around fragmentation of international law, but also around the continuing compatibility of peacekeeping with international law.

Research Journal of Pharmacy and Technology, 2019

We study two variants of the modified Watts threshold model with a noise (with nonconformity, in ... more We study two variants of the modified Watts threshold model with a noise (with nonconformity, in the terminology of social psychology) on a complete graph. Within the first version, a noise is introduced via so-called independence, whereas in the second version anticonformity plays the role of a noise, which destroys the order. The modified Watts threshold model, studied here, is homogeneous and posses an up-down symmetry, which makes it similar to other binary opinion models with a single-flip dynamics, such as the majority-vote and the q-voter models. Because within the majority-vote model with independence only continuous phase transitions are observed, whereas within the q-voter model with independence also discontinuous phase transitions are possible, we ask the question about the factor, which could be responsible for discontinuity of the order parameter. We investigate the model via the mean-field approach, which gives the exact result in the case of a complete graph, as well as via Monte Carlo simulations. Additionally, we provide a heuristic reasoning, which explains observed phenomena. We show that indeed, if the threshold r = 0.5, which corresponds to the majority-vote model, an order-disorder transition is continuous. Moreover, results obtained for both versions of the model (one with independence and the second one with anticonformity) give the same results, only rescaled by the factor of 2. However, for r > 0.5 the jump of the order parameter and the hysteresis is observed for the model with independence, and both versions of the model give qualitatively different results.

2015 International Conference on Innovations in Information, Embedded and Communication Systems (ICIIECS), 2015

In this paper, we are presenting a modified form of Intelligent Hybrid MAC (IH-MAC) protocol, tha... more In this paper, we are presenting a modified form of Intelligent Hybrid MAC (IH-MAC) protocol, that is a decentralized approach which guarantees to attain maximum efficiency in terms of security, energy consumption, congestion control and time synchronization. The existing IH-MAC protocol utilizes both CSMA and TDMA approaches with the concepts of broadcast scheduling and link scheduling. The Improved Intelligent Hybrid Multiple Access Control approach involves the utilization of the strengths of Q-MAC and Z-MAC protocols to reduce the energy consumption by controlling the transmission power of the various nodes in a wireless sensor network. Furthermore, in this paper, the concept of parallel transmission is being supported by the `2-hop neighbor identification' mechanism in order to reduce delay. Moreover, the simulation and analytical turnouts validate the theoretical idea and evince the enhanced efficiency of the proposed protocol.

Objectives: To survey the different approaches and implementations proposed by various research p... more Objectives: To survey the different approaches and implementations proposed by various research papers for Localization of Mobile Robots Methods/Statistical analysis: Understand the pros and cons of various methods proposed in earlier research papers like Ultrasonic Hybrid Localization algorithm, Extended Kalman filter (using time domain), Oversampling algorithm, Low Pass filter (using frequency domain) and identify the cost effective and accurate methods for Mobile Robot localization. Findings: Usage of Oversampling algorithm along with Low Pass Filter would help in reducing the cost of implementation as well as increases the accuracy of predicting the robots position Application / Improvements: Accurate position of Mobile Robots will help to reduce human labour in complicated/dangerous tasks and environments.

In recent years, optimization and Wireless Sensor Networks (WSNs) are extensively used in numerou... more In recent years, optimization and Wireless Sensor Networks (WSNs) are extensively used in numerous milieus and hostile topographies. In this paper, we proposed an improved localization algorithm by means of Least square and Minimum mean square error that evolvements with the basic DV-Hop algorithm. The localization error is shortened by our proposed algorithm and improves the localization accuracy of the basic DV-Hop algorithm with minimum number of beacon nodes. The proposed method is simulated and compared with other algorithms such as DV-Hop, ROCRSSI and APIT. The simulation is considered both with obstacle as well as without obstacle.

Always an efficient and low complexity reconfigurable filter architecture is required for the cha... more Always an efficient and low complexity reconfigurable filter architecture is required for the channel filters of digital channelizer in Software Defined Radio (SDR). In this paper, a block-based reconfigurable FIR filter is proposed using Distributed Arithmetic (DA) Technique. The complexity of the conventional multiplier is replaced with the DA multiplication process and the throughput of the entire filter is increased by block processing. Memory reuse is also achieved in the proposed direct form systolic FIR filter architecture due to parallel processing. The different bandwidth filters and the corresponding coefficients are stored in the LUTs concerning different channels of the digital channelizer. The proper channel selection is used to choose an appropriate filter and partial products are generated using Offset Binary Coding (OBC). Next, the multiplication process is done by the proposed decomposed LUT-based DA technique in the processing blocks of the filter. The proposed fil...

Research Journal of Pharmacy and Technology, 2020

Brain tumor segmentation in MRI images is one of the challenging tasks in medical field. In this ... more Brain tumor segmentation in MRI images is one of the challenging tasks in medical field. In this work, an efficient brain tumor is detection methodology is proposed for the MRI images. Image preprocessing filters are used to remove noises from the images. Contextual clustering extracts the tumor regions from the images Object labeling is also performed following the contextual clustering. The simulation results show that the proposed technique has achieved 94% of efficiency.

International Journal of Technology, 2019

2022 2nd International Conference on Advance Computing and Innovative Technologies in Engineering (ICACITE)

Journal of Physics: Conference Series, 2021

In day to day life, still the majority of the household having an extremely hectic schedule for c... more In day to day life, still the majority of the household having an extremely hectic schedule for cooking. The time taken to cook food in kitchen is very huge, which formulate them exhausted. Currently the technology has grown and automation process was introduced to society for human welfare. The proposed model of a new automatic cooking machine which is fully automated totally based on Arduino Mega. The fundamental inspiration behind this is to create a modernization in kitchen. Such innovation in kitchen will help reducing human efforts which is extraordinarily favorable to every person. This machine having following functions: pumping raw ingredients into pan, stirring then cooking. Also this machine maintains the quality with quantity of cooking food. The main aim of this model is to create the cooking very simple, trouble-free and a lesser amount of time consuming.

Biomedical Research-tokyo, 2016

The increasing exploitation of wireless sensor devices in Medical diagnostics and patient monitor... more The increasing exploitation of wireless sensor devices in Medical diagnostics and patient monitoring has attracted the researchers in the past few decades. Nowadays, the development of health care systems and infrastructure is one of the most demanding and convincing goals. The monitoring and supervision of patients which has been carried out are often executed manually. This paper provides patient monitoring, tracking and localization through wireless sensor networks. We proposed a novel hybrid localization method based on Time Difference of Arrival and Lagrangian multiplier to locate the position of sensor which provides patient localization for Health Care Support. This system performs the localization out of samples of Time Difference of Arrival, tracking and monitoring module based on accelerometer and low pass filter with oversampling algorithm. Also we have designed a hardware setup for monitoring moving target localization and tracking. The simulation results reveal that the...

2014 IEEE International Conference on Computational Intelligence and Computing Research, 2014

Recent technological developments in Micro-Electro-Mechanical System (MEMS) and communication sys... more Recent technological developments in Micro-Electro-Mechanical System (MEMS) and communication system have made the wireless sensor networks (WSNs) with emerging applications. Localization is the essential research problem in WSNs. In this paper, I have projected Received Signal Strength Indicator (RSSI) and improved Distance vector (DV) localization algorithms for accurate position estimation. The localization error is premeditated for a diverse range of anchor population, communication range and degree of irregularity (DOI). In the simulation, I compare these two localization algorithms and the result shows that the performance of improved DV-Hop algorithm has high position accuracy as compared to the RSSI algorithm.

2019 IEEE International Conference on Innovations in Communication, Computing and Instrumentation (ICCI), 2019

Mobility is an important aspect of life, for day to day responsibilities, taking care of oneself,... more Mobility is an important aspect of life, for day to day responsibilities, taking care of oneself, and for getting through life in general. While most people are blessed with the ability to do so, a few unfortunate ones face a lot of problems, and have to go through life while being assisted in some way or the other by people around them. The main inspiration behind this idea is to minimize the dependability of the visually impaired people, so as to help them move around a little bit easily than usual. This paper proposes a model and a system to navigate through unknown roads with safety and also provides an option of storing the user's location into a cloud for tracking purpose, which could also fight the problem of human trafficking.

Microprocessors and Microsystems, 2021

Background An economical solution and advanced method are provided by dynamic voltage storage (DV... more Background An economical solution and advanced method are provided by dynamic voltage storage (DVR) system for voltage sag in transmission line. Due to the increasing voltage-sensitive equipment use, the issue of voltage savings is becoming one of the significant power quality issues.DVR is used to overcome the problems of power quality issues, unbalanced supply voltage and harmonic distortion. In this study, an efficient Z-DVR with its control technique is presented. Methods DVR using Z-source inverter with Synchronous Reference Frame (SRF) Controller for compensates the voltage sag, and regulates the DC link voltage which protects the transmission from the severe damage. The voltage efficiency of sensitive loads by the use of an improved control scheme in dynamic voltage restorer is improved. Results Conventional control approaches have several limitations, such as high dc time and increasing harmonics, which can be overcome with new impedance-based PLL solutions, allowing the net...

Wireless broadband communication has gained attention due to ever growing demands of multimedia a... more Wireless broadband communication has gained attention due to ever growing demands of multimedia and internet services. The major challenges faced by wireless communication are availability of resources like bandwidth and transmission power. Also the wireless channel suffers from impairments like fading. Frequency Division Multiplexing (FDM) based subcarrier Channel impairments must be mitigated at the receiver by using equalization techniques. In these concept BER performance is minimized improvements of SC-FDMA systems using different equalization techniques such as Zero forcing (ZF), Minimum mean 1 International Journal of Pure and Applied Mathematics Volume 118 No. 24 2018 ISSN: 1314-3395 (on-line version) url: http://www.acadpubl.eu/hub/ Special Issue http://www.acadpubl.eu/hub/

Optimization and Wireless Sensor Networks (WSNs) are mostly used in various atmospheres and antag... more Optimization and Wireless Sensor Networks (WSNs) are mostly used in various atmospheres and antagonistic geographies in recent years. The utmost challenging aspect in WSNs is defining the location of each sensor node, i.e., localization. This paper proposes a localization algorithm by means of Least Square (LS) and Minimum Mean Square Error (MMSE) for with and without obstacle that enhances the fundamental DV-Hop algorithm dramatically. The localization error using the proposed algorithm is calculated and compared with basic DV-Hop, ROCRSSI and APIT. The average localization error for various anchor populations is also compared with Received Signal Strength Indicator (RSSI). The proposed algorithm gives better results for localization estimation even in lesser amount of beacons.

Research Journal of Pharmacy and Technology, 2020

Human beings, wearing hearing prosthetics will have hard time in segregating voice of interest fr... more Human beings, wearing hearing prosthetics will have hard time in segregating voice of interest from background noise in surrounded noisy environment, such that the intelligibility of the hearing prosthetics has to be improved. In this paper, a variable bandwidth band pass filter is proposed so that the intelligibility of the speech will get enhanced. The proposed algorithm is also analyzed in different noisy environments. This work is implemented in LAB View and Field Programmable Gate Arrays.

Research Journal of Pharmacy and Technology, 2020

Recent research is going on about the radio frequency energy harvesting technique or RF harvestin... more Recent research is going on about the radio frequency energy harvesting technique or RF harvesting, we can convert the received RF signals into electricity. This technique becomes a solution to power energy-constrained wireless networks. Whereas, the energy-constrained wireless networks, have a limited lifetime which largely confines the network performance. In contrast, an RF energy harvesting network (RF-EHN) has a power supply. This paper therefore discuss the RF energy harvesting capability that allows the wireless devices to harvest energy from RF signals for processing and also can be transmitting the signal. The increasing demand of RF energy harvesting has introduced commercialized products, like (Power caster and Cota system). This paper proposes a Genetic algorithm based Multi coil (MC) optimization technique to optimize the circuit design of a WPT system.

Research Journal of Pharmacy and Technology, 2019

This article explores the legal bases of autonomy in peacekeeping and whether it has developed to... more This article explores the legal bases of autonomy in peacekeeping and whether it has developed to such an extent that there are signs of a self-referential legal order governing peacekeeping, separate from other legal orders. Given that it will be shown that the principles governing peacekeeping are derived from general international law, there must be a presumption against there being a self-referential legal order, but the possibility that there has been a significant development of specific principles and rules will be explored. Moreover, this development may have occurred to such an extent that although the original source may remain in international law, a separate legal order has emerged. If the norms of that legal order no longer reflect the wider principles of international law then concerns revolve not only around fragmentation of international law, but also around the continuing compatibility of peacekeeping with international law.

Research Journal of Pharmacy and Technology, 2019

We study two variants of the modified Watts threshold model with a noise (with nonconformity, in ... more We study two variants of the modified Watts threshold model with a noise (with nonconformity, in the terminology of social psychology) on a complete graph. Within the first version, a noise is introduced via so-called independence, whereas in the second version anticonformity plays the role of a noise, which destroys the order. The modified Watts threshold model, studied here, is homogeneous and posses an up-down symmetry, which makes it similar to other binary opinion models with a single-flip dynamics, such as the majority-vote and the q-voter models. Because within the majority-vote model with independence only continuous phase transitions are observed, whereas within the q-voter model with independence also discontinuous phase transitions are possible, we ask the question about the factor, which could be responsible for discontinuity of the order parameter. We investigate the model via the mean-field approach, which gives the exact result in the case of a complete graph, as well as via Monte Carlo simulations. Additionally, we provide a heuristic reasoning, which explains observed phenomena. We show that indeed, if the threshold r = 0.5, which corresponds to the majority-vote model, an order-disorder transition is continuous. Moreover, results obtained for both versions of the model (one with independence and the second one with anticonformity) give the same results, only rescaled by the factor of 2. However, for r > 0.5 the jump of the order parameter and the hysteresis is observed for the model with independence, and both versions of the model give qualitatively different results.

2015 International Conference on Innovations in Information, Embedded and Communication Systems (ICIIECS), 2015

In this paper, we are presenting a modified form of Intelligent Hybrid MAC (IH-MAC) protocol, tha... more In this paper, we are presenting a modified form of Intelligent Hybrid MAC (IH-MAC) protocol, that is a decentralized approach which guarantees to attain maximum efficiency in terms of security, energy consumption, congestion control and time synchronization. The existing IH-MAC protocol utilizes both CSMA and TDMA approaches with the concepts of broadcast scheduling and link scheduling. The Improved Intelligent Hybrid Multiple Access Control approach involves the utilization of the strengths of Q-MAC and Z-MAC protocols to reduce the energy consumption by controlling the transmission power of the various nodes in a wireless sensor network. Furthermore, in this paper, the concept of parallel transmission is being supported by the `2-hop neighbor identification' mechanism in order to reduce delay. Moreover, the simulation and analytical turnouts validate the theoretical idea and evince the enhanced efficiency of the proposed protocol.

Objectives: To survey the different approaches and implementations proposed by various research p... more Objectives: To survey the different approaches and implementations proposed by various research papers for Localization of Mobile Robots Methods/Statistical analysis: Understand the pros and cons of various methods proposed in earlier research papers like Ultrasonic Hybrid Localization algorithm, Extended Kalman filter (using time domain), Oversampling algorithm, Low Pass filter (using frequency domain) and identify the cost effective and accurate methods for Mobile Robot localization. Findings: Usage of Oversampling algorithm along with Low Pass Filter would help in reducing the cost of implementation as well as increases the accuracy of predicting the robots position Application / Improvements: Accurate position of Mobile Robots will help to reduce human labour in complicated/dangerous tasks and environments.

In recent years, optimization and Wireless Sensor Networks (WSNs) are extensively used in numerou... more In recent years, optimization and Wireless Sensor Networks (WSNs) are extensively used in numerous milieus and hostile topographies. In this paper, we proposed an improved localization algorithm by means of Least square and Minimum mean square error that evolvements with the basic DV-Hop algorithm. The localization error is shortened by our proposed algorithm and improves the localization accuracy of the basic DV-Hop algorithm with minimum number of beacon nodes. The proposed method is simulated and compared with other algorithms such as DV-Hop, ROCRSSI and APIT. The simulation is considered both with obstacle as well as without obstacle.