Pub Date : 2015-10-01DOI: 10.1109/WINCOM.2015.7381301
A. Yatribi, F. Ayoub, M. Belkasmi
In [6], a construction of cyclic one-step majority-logic decodable codes based on idempotent polynomials is given. However, the search for the feasible Parity-Check Idempotent runs through all possible combinations of cyclotomic cosets modulo n, satisfying some algebraic constraints, consequently, increasing the code length may result in very large dimension space search, and the search for the solution becomes more difficult. In this paper, we propose a Genetic Algorithm that aimes to construct new moderate and high lengths Binary Cyclic OSMLD codes, considered as LDPC codes, with high correction capacities. Our construction is very efficient and provide codes with high lenghts and high rates.
{"title":"Construction of cyclic one-step majority-logic decodable codes using genetic algorithms","authors":"A. Yatribi, F. Ayoub, M. Belkasmi","doi":"10.1109/WINCOM.2015.7381301","DOIUrl":"https://doi.org/10.1109/WINCOM.2015.7381301","url":null,"abstract":"In [6], a construction of cyclic one-step majority-logic decodable codes based on idempotent polynomials is given. However, the search for the feasible Parity-Check Idempotent runs through all possible combinations of cyclotomic cosets modulo n, satisfying some algebraic constraints, consequently, increasing the code length may result in very large dimension space search, and the search for the solution becomes more difficult. In this paper, we propose a Genetic Algorithm that aimes to construct new moderate and high lengths Binary Cyclic OSMLD codes, considered as LDPC codes, with high correction capacities. Our construction is very efficient and provide codes with high lenghts and high rates.","PeriodicalId":389513,"journal":{"name":"2015 International Conference on Wireless Networks and Mobile Communications (WINCOM)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115496338","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2015-10-01DOI: 10.1109/WINCOM.2015.7381343
A. Benjebbour, Keisuke Saito, Anxin Li, Y. Kishiyama, Takehiro Nakamura
Non-orthogonal multiple access (NOMA) has been attracting a lot of attention as a promising downlink multiple access scheme for LTE enhancements and 5G. This paper introduces an overview of the concept, performance evaluation gains and our experimental trials related to NOMA. The goal is to clarify the benefits of NOMA over orthogonal multiple access (OMA) such as OFDMA adopted by Long-Term Evolution (LTE), also its combination with MIMO is discussed. Using computer simulations, NOMA performance gains are assessed from both link-level and system-level perspectives. Also, our NOMA test-bed and the measurement results are explained. Our evaluation results and measurements show that NOMA provides higher gains compared to OFDMA. These gains are more than 30%.
{"title":"Non-orthogonal multiple access (NOMA): Concept, performance evaluation and experimental trials","authors":"A. Benjebbour, Keisuke Saito, Anxin Li, Y. Kishiyama, Takehiro Nakamura","doi":"10.1109/WINCOM.2015.7381343","DOIUrl":"https://doi.org/10.1109/WINCOM.2015.7381343","url":null,"abstract":"Non-orthogonal multiple access (NOMA) has been attracting a lot of attention as a promising downlink multiple access scheme for LTE enhancements and 5G. This paper introduces an overview of the concept, performance evaluation gains and our experimental trials related to NOMA. The goal is to clarify the benefits of NOMA over orthogonal multiple access (OMA) such as OFDMA adopted by Long-Term Evolution (LTE), also its combination with MIMO is discussed. Using computer simulations, NOMA performance gains are assessed from both link-level and system-level perspectives. Also, our NOMA test-bed and the measurement results are explained. Our evaluation results and measurements show that NOMA provides higher gains compared to OFDMA. These gains are more than 30%.","PeriodicalId":389513,"journal":{"name":"2015 International Conference on Wireless Networks and Mobile Communications (WINCOM)","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128617700","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2015-10-01DOI: 10.1109/WINCOM.2015.7381304
Marwane Ayaida, Beatrice Beaujet, F. Valentin, Fabien Bradmetz, G. Picco, Bilel Rojbi
The road safety and maintenance are very important and costly activities for road operators. Due to the decrease in the cost of the sensors technologies and wireless equipments, connecting maintenance fleet vehicles become very intuitive. It allows to enhance the efficiency and the reactivity of such services. In the present paper we describe an interconnection system that facilitates the data exchange between maintenance vehicles and Network Operation Center (NOC). We detail the data synchronization mechanism used by this system, which is equipping forty vehicles under tests. These tests showed that our system works well and enhance the efficiency of the road's maintenance and incidents' treatment.
{"title":"Data synchronization in vehicles for on-board handrail","authors":"Marwane Ayaida, Beatrice Beaujet, F. Valentin, Fabien Bradmetz, G. Picco, Bilel Rojbi","doi":"10.1109/WINCOM.2015.7381304","DOIUrl":"https://doi.org/10.1109/WINCOM.2015.7381304","url":null,"abstract":"The road safety and maintenance are very important and costly activities for road operators. Due to the decrease in the cost of the sensors technologies and wireless equipments, connecting maintenance fleet vehicles become very intuitive. It allows to enhance the efficiency and the reactivity of such services. In the present paper we describe an interconnection system that facilitates the data exchange between maintenance vehicles and Network Operation Center (NOC). We detail the data synchronization mechanism used by this system, which is equipping forty vehicles under tests. These tests showed that our system works well and enhance the efficiency of the road's maintenance and incidents' treatment.","PeriodicalId":389513,"journal":{"name":"2015 International Conference on Wireless Networks and Mobile Communications (WINCOM)","volume":"119 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130484131","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2015-10-01DOI: 10.1109/WINCOM.2015.7381311
Nawal Bounouader, Sofia Ghacham, G. Aniba, Z. Guennoun
Cooperative Cognitive Radio Networks (CCRN) is a promising concept recently studied to enhance cellular networks. The basic idea is that a primary user (PU) transmits his traffic assisted by some selected secondary users (SUs), which transmit also their own traffics using the same channel. The existing works in the literature propose the use of the same channel by applying a time division approach, where a time slot is dedicated to secondary traffic transmission, which degrads system performance. To overcome this problem, the use of multiple antennas enables simultaneous primary and secondary transmissions. Furthermore, the integration of beam-forming techniques removes the interference generated by this simultaneous transmissions. However, for almost systems proposed so far, only the PU and one SU can transmit simultaneously. In this paper, we propose a new scheme of CCRN where SUs communicate with a fusion center (FC) over a TV White Space (TVWS) band and perform a modulation matrix that allows simultaneous transmissions of the PU and all SUs with no interferences. Finally, we prove by theoretical studies and simulations that the suggested model improves significantly the rate of secondary users yet retaining good performances for the primary link.
{"title":"Exploiting zero forcing beamforming and TV white space band for multiuser MIMO cognitive cooperative radio networks","authors":"Nawal Bounouader, Sofia Ghacham, G. Aniba, Z. Guennoun","doi":"10.1109/WINCOM.2015.7381311","DOIUrl":"https://doi.org/10.1109/WINCOM.2015.7381311","url":null,"abstract":"Cooperative Cognitive Radio Networks (CCRN) is a promising concept recently studied to enhance cellular networks. The basic idea is that a primary user (PU) transmits his traffic assisted by some selected secondary users (SUs), which transmit also their own traffics using the same channel. The existing works in the literature propose the use of the same channel by applying a time division approach, where a time slot is dedicated to secondary traffic transmission, which degrads system performance. To overcome this problem, the use of multiple antennas enables simultaneous primary and secondary transmissions. Furthermore, the integration of beam-forming techniques removes the interference generated by this simultaneous transmissions. However, for almost systems proposed so far, only the PU and one SU can transmit simultaneously. In this paper, we propose a new scheme of CCRN where SUs communicate with a fusion center (FC) over a TV White Space (TVWS) band and perform a modulation matrix that allows simultaneous transmissions of the PU and all SUs with no interferences. Finally, we prove by theoretical studies and simulations that the suggested model improves significantly the rate of secondary users yet retaining good performances for the primary link.","PeriodicalId":389513,"journal":{"name":"2015 International Conference on Wireless Networks and Mobile Communications (WINCOM)","volume":"247 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127391993","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2015-10-01DOI: 10.1109/WINCOM.2015.7381316
Najeh Jammali, L. Chaari
In recent years, Wireless Body Area Network (WBAN) has emerged as a new technology which allows human body monitoring. Because of their enormous benefits, the use of this type of wireless networks is surprisingly increasing day by day and it has a strong presence in several domains. However, WBAN has many challenges yet to be resolved. Security is the most crucial issue. In this paper, we propose a novel key agreement scheme termed Physiological-Feature-based Key Agreement (PFKA) as a biometric based security system. The proposed scheme allows sensors belonging the same WBAN to agree on a symmetric cryptographic key generated from overlapping physiological signal features. On one hand, security analysis shows that our protocol can guarantee data confidentiality, authenticity and integrity. In the other hand, performance analysis show that our scheme reduces communication overhead in comparison with the other proposal protocol termed Secure and Efficient Ordered-Physiological-Feature-based Key Agreement for Wireless Body Area Networks (OPFKA).
{"title":"PFKA: A physiological feature based key agreement for wireless body area network","authors":"Najeh Jammali, L. Chaari","doi":"10.1109/WINCOM.2015.7381316","DOIUrl":"https://doi.org/10.1109/WINCOM.2015.7381316","url":null,"abstract":"In recent years, Wireless Body Area Network (WBAN) has emerged as a new technology which allows human body monitoring. Because of their enormous benefits, the use of this type of wireless networks is surprisingly increasing day by day and it has a strong presence in several domains. However, WBAN has many challenges yet to be resolved. Security is the most crucial issue. In this paper, we propose a novel key agreement scheme termed Physiological-Feature-based Key Agreement (PFKA) as a biometric based security system. The proposed scheme allows sensors belonging the same WBAN to agree on a symmetric cryptographic key generated from overlapping physiological signal features. On one hand, security analysis shows that our protocol can guarantee data confidentiality, authenticity and integrity. In the other hand, performance analysis show that our scheme reduces communication overhead in comparison with the other proposal protocol termed Secure and Efficient Ordered-Physiological-Feature-based Key Agreement for Wireless Body Area Networks (OPFKA).","PeriodicalId":389513,"journal":{"name":"2015 International Conference on Wireless Networks and Mobile Communications (WINCOM)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125679636","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2015-10-01DOI: 10.1109/WINCOM.2015.7381305
H. Magri, N. Abghour, M. Ouzzif
Today, One of the most important performance measures in the new burst traffic gets to 3G and 4G systems is the End-to-End jitter. However, in order to study and analyze Jitter, many works and models have been devoted to estimate and evaluate this parameter. In this paper, analytical formulas for jitter of interrupted Poisson traffic (IPP) and MMPP-2 are presented. We provide Jitter approximation for The IPP Model. Moreover, we found that the jitter calculated directly using the IPP process is almost equal to that found by the EPP model. We have found that jitter can be a decreasing function of load. Simulation results show that the delay and jitter behave inversely which confirms the result already found in [8]. Finally, we found value of the average arrival rate and service rate required to provide flexible and efficient QoS guarantees for VoIP.
{"title":"Analytical models for jitter and QoS requirements with IPP and MMPP-2 traffics","authors":"H. Magri, N. Abghour, M. Ouzzif","doi":"10.1109/WINCOM.2015.7381305","DOIUrl":"https://doi.org/10.1109/WINCOM.2015.7381305","url":null,"abstract":"Today, One of the most important performance measures in the new burst traffic gets to 3G and 4G systems is the End-to-End jitter. However, in order to study and analyze Jitter, many works and models have been devoted to estimate and evaluate this parameter. In this paper, analytical formulas for jitter of interrupted Poisson traffic (IPP) and MMPP-2 are presented. We provide Jitter approximation for The IPP Model. Moreover, we found that the jitter calculated directly using the IPP process is almost equal to that found by the EPP model. We have found that jitter can be a decreasing function of load. Simulation results show that the delay and jitter behave inversely which confirms the result already found in [8]. Finally, we found value of the average arrival rate and service rate required to provide flexible and efficient QoS guarantees for VoIP.","PeriodicalId":389513,"journal":{"name":"2015 International Conference on Wireless Networks and Mobile Communications (WINCOM)","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131633331","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2015-10-01DOI: 10.1109/WINCOM.2015.7381342
Abdelmajid Bessate, Faissal El Bouanani
Ascertaining the importance of the Maximal Ratio Combining (MRC) receiver and the suitability of the Weibull model to describe mobile fading channels, we study the performance of this combiner over correlated Weibull Fading Channels (WFC) with arbitrary parameters. We adapt the approximate closed-form expressions of many performance criteria of L-branch MRC derived in [1] to the case of correlated channels. Additionally, to reduce the computing complexity of performance criteria, the probability density function (PDF) and the moment generating function (MGF) of the output SNR are written otherwise in terms of simple polynomial and Laguerre generalized function. All the results are evaluated and illustrated by using Mathematica Software, verified and validated by monte-carlo simulation and comparison with previous results [2].
{"title":"Performance analysis of MRC diversity in correlated Weibull fading channels","authors":"Abdelmajid Bessate, Faissal El Bouanani","doi":"10.1109/WINCOM.2015.7381342","DOIUrl":"https://doi.org/10.1109/WINCOM.2015.7381342","url":null,"abstract":"Ascertaining the importance of the Maximal Ratio Combining (MRC) receiver and the suitability of the Weibull model to describe mobile fading channels, we study the performance of this combiner over correlated Weibull Fading Channels (WFC) with arbitrary parameters. We adapt the approximate closed-form expressions of many performance criteria of L-branch MRC derived in [1] to the case of correlated channels. Additionally, to reduce the computing complexity of performance criteria, the probability density function (PDF) and the moment generating function (MGF) of the output SNR are written otherwise in terms of simple polynomial and Laguerre generalized function. All the results are evaluated and illustrated by using Mathematica Software, verified and validated by monte-carlo simulation and comparison with previous results [2].","PeriodicalId":389513,"journal":{"name":"2015 International Conference on Wireless Networks and Mobile Communications (WINCOM)","volume":"269 1‐4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113959263","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2015-10-01DOI: 10.1109/WINCOM.2015.7381326
Hajar Elhammouti, M. Benjillali, L. Echabbi
Heterogeneous deployment of base stations with different transmit power levels helps increase the network efficiency. Yet, the allocation of powers to base stations should be optimal in order to minimize interferences and thus improve users through-put. In this paper, we present a game theoretical approach to maximize the overall throughput in heterogeneous networks with optimal power allocation. We formulate the allocation problem as a "potential game". This type of games is characterized by a potential function, and has a specific property: a pure Nash equilibrium solution always exists and it is, moreover, either a local or a global optimizer of the potential function. We use a fully distributed algorithm that requires minimal coordination between base stations to reach a Nash equilibrium, and we prove that it is necessarily a global maximum. The performance of the algorithm is evaluated through simulations.
{"title":"Power allocation optimization for heterogeneous networks: A potential game approach","authors":"Hajar Elhammouti, M. Benjillali, L. Echabbi","doi":"10.1109/WINCOM.2015.7381326","DOIUrl":"https://doi.org/10.1109/WINCOM.2015.7381326","url":null,"abstract":"Heterogeneous deployment of base stations with different transmit power levels helps increase the network efficiency. Yet, the allocation of powers to base stations should be optimal in order to minimize interferences and thus improve users through-put. In this paper, we present a game theoretical approach to maximize the overall throughput in heterogeneous networks with optimal power allocation. We formulate the allocation problem as a \"potential game\". This type of games is characterized by a potential function, and has a specific property: a pure Nash equilibrium solution always exists and it is, moreover, either a local or a global optimizer of the potential function. We use a fully distributed algorithm that requires minimal coordination between base stations to reach a Nash equilibrium, and we prove that it is necessarily a global maximum. The performance of the algorithm is evaluated through simulations.","PeriodicalId":389513,"journal":{"name":"2015 International Conference on Wireless Networks and Mobile Communications (WINCOM)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128547818","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2015-10-01DOI: 10.1109/WINCOM.2015.7381320
Samia Jalil, M. Abbad, R. E. Azouzi
Real-time applications over wireless networks often suffers from jitter, delay and packet loss. The traditional techniques for error control are FEC (Forward Error Correction) and ARQ (Automatic Repeat Request). In this paper a hybrid FEC/ARQ mechanisms with limiting the slots number between the loss of the last retransmission of the original block n and the reception of block n + φ is analyzed in an environment of real time applications. We assume that the packet size increases when adding redundancy so that the amount of useful information contained in a packet is unchanged. We evalute analytically the performance of TFRC (TCP Friendly Rate Control) and ARC (Analytical Rate Control Protocol) as a function of the parameters of the FEC scheme, the limit number of retransmission used by ARQ scheme and the number of slots threshold Sth. We show that the combination of FEC and ARQ with limiting the Sth reduces the number of retransmissions and keeps a reasonable delay for real time traffic in wireless networks.
{"title":"Hybrid FEC/ARQ schemes for real-time traffic in wireless networks","authors":"Samia Jalil, M. Abbad, R. E. Azouzi","doi":"10.1109/WINCOM.2015.7381320","DOIUrl":"https://doi.org/10.1109/WINCOM.2015.7381320","url":null,"abstract":"Real-time applications over wireless networks often suffers from jitter, delay and packet loss. The traditional techniques for error control are FEC (Forward Error Correction) and ARQ (Automatic Repeat Request). In this paper a hybrid FEC/ARQ mechanisms with limiting the slots number between the loss of the last retransmission of the original block n and the reception of block n + φ is analyzed in an environment of real time applications. We assume that the packet size increases when adding redundancy so that the amount of useful information contained in a packet is unchanged. We evalute analytically the performance of TFRC (TCP Friendly Rate Control) and ARC (Analytical Rate Control Protocol) as a function of the parameters of the FEC scheme, the limit number of retransmission used by ARQ scheme and the number of slots threshold Sth. We show that the combination of FEC and ARQ with limiting the Sth reduces the number of retransmissions and keeps a reasonable delay for real time traffic in wireless networks.","PeriodicalId":389513,"journal":{"name":"2015 International Conference on Wireless Networks and Mobile Communications (WINCOM)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128577250","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2015-10-01DOI: 10.1109/WINCOM.2015.7381339
H. Errifi, A. Baghdad, A. Badri, A. Sahel
In this paper, the design of a microstrip patch antenna using superstrate layers for performance enhancement is presented. The proposed antenna is excited by using the edge, inset, probe and aperture feeding methods. Genetic Algorithm optimization technique has been utilized for the optimization of patch antenna dimensions. The double layer dielectric superstrate disposed above the patch antennas are used for enhancing the directivity and also for getting better return loss since microstrip antennas have limitations in directivity, gain and efficiency. The proposed antennas are simulated by using the Ansoft High Frequency Structure Simulator software. The characteristics of the edge, inset, probe and aperture feeding patch antennas covered by superstrate are obtained in terms of return loss, directivity, voltage standing wave ratio and radiation pattern and are compared with those of the same patch antennas without superstrate. We also carry out a parametric study of the distance between the lower and the higher superstrate, and examine how this separation distance affects the directivity and beam shaping of the composite structure. The return loss up to -47.06 dB and directivity equal to 13.5 dB are obtained at the center frequency of 8 GHz for the aperture coupled patch antenna through the use of the superstrate layers. This antenna is found to be suitable for X band applications.
{"title":"Optimization and performance analysis of probe-edge-inset and aperture feed patch antenna covered by dielectric superstrate","authors":"H. Errifi, A. Baghdad, A. Badri, A. Sahel","doi":"10.1109/WINCOM.2015.7381339","DOIUrl":"https://doi.org/10.1109/WINCOM.2015.7381339","url":null,"abstract":"In this paper, the design of a microstrip patch antenna using superstrate layers for performance enhancement is presented. The proposed antenna is excited by using the edge, inset, probe and aperture feeding methods. Genetic Algorithm optimization technique has been utilized for the optimization of patch antenna dimensions. The double layer dielectric superstrate disposed above the patch antennas are used for enhancing the directivity and also for getting better return loss since microstrip antennas have limitations in directivity, gain and efficiency. The proposed antennas are simulated by using the Ansoft High Frequency Structure Simulator software. The characteristics of the edge, inset, probe and aperture feeding patch antennas covered by superstrate are obtained in terms of return loss, directivity, voltage standing wave ratio and radiation pattern and are compared with those of the same patch antennas without superstrate. We also carry out a parametric study of the distance between the lower and the higher superstrate, and examine how this separation distance affects the directivity and beam shaping of the composite structure. The return loss up to -47.06 dB and directivity equal to 13.5 dB are obtained at the center frequency of 8 GHz for the aperture coupled patch antenna through the use of the superstrate layers. This antenna is found to be suitable for X band applications.","PeriodicalId":389513,"journal":{"name":"2015 International Conference on Wireless Networks and Mobile Communications (WINCOM)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128831814","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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