Pub Date : 2014-04-06DOI: 10.1109/WCNC.2014.6952727
S. Farhat, A. Samhat, S. Lahoud
In this paper, we propose a hybrid decision algorithm for the selection of the access in multi-operator networks environment, where competing operators share their radio access networks to meet traffic and data rate demands. The proposed algorithm guarantees the user satisfaction and a global gain for all cooperating operators. Simulation results prove the efficiency of the proposed scheme and show that the cooperation between operators achieves benefits to both users and operators; user acceptance as well as the operator resource utilization and the operator revenue increase.
{"title":"Hybrid decision algorithm for access selection in multi-operator networks","authors":"S. Farhat, A. Samhat, S. Lahoud","doi":"10.1109/WCNC.2014.6952727","DOIUrl":"https://doi.org/10.1109/WCNC.2014.6952727","url":null,"abstract":"In this paper, we propose a hybrid decision algorithm for the selection of the access in multi-operator networks environment, where competing operators share their radio access networks to meet traffic and data rate demands. The proposed algorithm guarantees the user satisfaction and a global gain for all cooperating operators. Simulation results prove the efficiency of the proposed scheme and show that the cooperation between operators achieves benefits to both users and operators; user acceptance as well as the operator resource utilization and the operator revenue increase.","PeriodicalId":220393,"journal":{"name":"2014 IEEE Wireless Communications and Networking Conference (WCNC)","volume":"179 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133073525","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 : 2014-04-06DOI: 10.1109/WCNC.2014.6952927
Robert Webster, K. Munasinghe, A. Jamalipour
The establishment of a previously non-existent data class known as the Smart Grid will pose many difficulties on current and future communication infrastructure. It is imperative that the Smart Grid, as the reactionary and monitory arm of the Power Grid, be able to communicate effectively between grid controllers and individual UEs. Like most wireless sensor networks (WSN), the data sent by individual UEs has limited usefulness and precision. Collection of a large amount of data produces information that is useful to the system and which can be acted upon. However, this increases the communication traffic in an environment where communication traffic from other mobile users is already high. By ensuring effective communications between Distributed Generators and the Smart Grid, renewable resources that are subject to large fluctuations can be utilized more effectively and efficiently. This research proposes that a Proportional Fairness Algorithm, when combined with Lotka-Volterra Population Theory, will ensure fair bandwidth allocation for all User Equipment, whilst guaranteeing Smart Grid operating constraints such as minimal latency. Furthermore, the optimization of the bandwidth allocation maximizes Smart Grid Quality of Service, while also minimizing the decrease in Non-Smart Grid UE Quality of Experience.
{"title":"A population theory inspired solution to the optimal bandwidth allocation for Smart Grid applications","authors":"Robert Webster, K. Munasinghe, A. Jamalipour","doi":"10.1109/WCNC.2014.6952927","DOIUrl":"https://doi.org/10.1109/WCNC.2014.6952927","url":null,"abstract":"The establishment of a previously non-existent data class known as the Smart Grid will pose many difficulties on current and future communication infrastructure. It is imperative that the Smart Grid, as the reactionary and monitory arm of the Power Grid, be able to communicate effectively between grid controllers and individual UEs. Like most wireless sensor networks (WSN), the data sent by individual UEs has limited usefulness and precision. Collection of a large amount of data produces information that is useful to the system and which can be acted upon. However, this increases the communication traffic in an environment where communication traffic from other mobile users is already high. By ensuring effective communications between Distributed Generators and the Smart Grid, renewable resources that are subject to large fluctuations can be utilized more effectively and efficiently. This research proposes that a Proportional Fairness Algorithm, when combined with Lotka-Volterra Population Theory, will ensure fair bandwidth allocation for all User Equipment, whilst guaranteeing Smart Grid operating constraints such as minimal latency. Furthermore, the optimization of the bandwidth allocation maximizes Smart Grid Quality of Service, while also minimizing the decrease in Non-Smart Grid UE Quality of Experience.","PeriodicalId":220393,"journal":{"name":"2014 IEEE Wireless Communications and Networking Conference (WCNC)","volume":"95 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133558585","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 : 2014-04-06DOI: 10.1109/WCNC.2014.6953008
Osamah. S. Badarneh
The end-to-end performance of dual-hop relaying networks with beamforming over generalized η-μ fading channels is investigated. In our analysis, we assume fixed-gain relays with single antennas, whereas the source and destination terminals are equipped with multiple antennas. Novel expressions for the generalized moments of the end-to-end signal-to-noise ratio (SNR), the cumulative density function (CDF), probability density function (PDF), and moment generating function (MGF) are derived. These analytical expressions are then used to derive new expressions for Rayleigh fading channels as a special case. The new derived expressions, for Rayleigh fading channels, for the PDF and MGF of the end-to-end SNR are simpler and more tractable than those reported in the literature. Simulation results show the tightness and accuracy of the newly derived expressions.
{"title":"On the performance of fixed-gain amplify-and-forward dual-hop relaying in wireless networks with beamforming","authors":"Osamah. S. Badarneh","doi":"10.1109/WCNC.2014.6953008","DOIUrl":"https://doi.org/10.1109/WCNC.2014.6953008","url":null,"abstract":"The end-to-end performance of dual-hop relaying networks with beamforming over generalized η-μ fading channels is investigated. In our analysis, we assume fixed-gain relays with single antennas, whereas the source and destination terminals are equipped with multiple antennas. Novel expressions for the generalized moments of the end-to-end signal-to-noise ratio (SNR), the cumulative density function (CDF), probability density function (PDF), and moment generating function (MGF) are derived. These analytical expressions are then used to derive new expressions for Rayleigh fading channels as a special case. The new derived expressions, for Rayleigh fading channels, for the PDF and MGF of the end-to-end SNR are simpler and more tractable than those reported in the literature. Simulation results show the tightness and accuracy of the newly derived expressions.","PeriodicalId":220393,"journal":{"name":"2014 IEEE Wireless Communications and Networking Conference (WCNC)","volume":"145 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133712501","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 : 2014-04-06DOI: 10.1109/WCNC.2014.6952318
T. Le, K. Navaie
We propose a novel scheme to design downlink beamforming vectors in a cognitive cellular network which shares radio spectrum with a primary communication system. We formulate an optimization problem which minimizes the cognitive base station transmit power and the induced interference on the primary users and keeps them below predefined system thresholds. This is subject to providing a certain level of signal-to-interference-plus-noise ratio to the secondary users. We propose an iterative algorithm to solve the optimization problem. The convergence of the proposed iterative algorithm is analytically proved. Simulation results verify that the proposed algorithm quickly converges to the optimal solution. Results also indicate that the proposed algorithm guarantees the transmit power and interference constraints. We then compare the proposed scheme with a benchmark system based on the previous methods. Comparisons show significant reduction in the total interference at reasonable cost of the cognitive base station transmit power.
{"title":"Downlink beamforming design for cognitive cellular systems","authors":"T. Le, K. Navaie","doi":"10.1109/WCNC.2014.6952318","DOIUrl":"https://doi.org/10.1109/WCNC.2014.6952318","url":null,"abstract":"We propose a novel scheme to design downlink beamforming vectors in a cognitive cellular network which shares radio spectrum with a primary communication system. We formulate an optimization problem which minimizes the cognitive base station transmit power and the induced interference on the primary users and keeps them below predefined system thresholds. This is subject to providing a certain level of signal-to-interference-plus-noise ratio to the secondary users. We propose an iterative algorithm to solve the optimization problem. The convergence of the proposed iterative algorithm is analytically proved. Simulation results verify that the proposed algorithm quickly converges to the optimal solution. Results also indicate that the proposed algorithm guarantees the transmit power and interference constraints. We then compare the proposed scheme with a benchmark system based on the previous methods. Comparisons show significant reduction in the total interference at reasonable cost of the cognitive base station transmit power.","PeriodicalId":220393,"journal":{"name":"2014 IEEE Wireless Communications and Networking Conference (WCNC)","volume":"181 4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131277318","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 : 2014-04-06DOI: 10.1109/WCNC.2014.6952821
Nouha Sghaier, B. Augustin, A. Mellouk
Network lifetime has become the key characteristic for evaluating sensor networks in an application-specific way. In this paper, we focus on Mobile Wireless Sensor Networks, which are specific opportunistic networks because of their poor connectivity among the mobile sensors, and thus it is difficult to form a well connected mesh network for transmitting data through end-to-end connections from the sensors to the sink. We propose EXLIOSE (Novel approach to EXtending network LIfetime in Opportunistic SEnsor Networks), a routing protocol that focuses on maximizing network lifetime while keeping high delivery statistics. EXLIOSE is based on a novel routing metric that uses the history of encounters between nodes, and the nodal residual energy. Simulation results show that our approach is able to extend network lifetime and achieve good delivery statistics, as compared to state-of-the-art solutions.
{"title":"On enhancing network-lifetime in opportunistic Wireless Sensor Networks","authors":"Nouha Sghaier, B. Augustin, A. Mellouk","doi":"10.1109/WCNC.2014.6952821","DOIUrl":"https://doi.org/10.1109/WCNC.2014.6952821","url":null,"abstract":"Network lifetime has become the key characteristic for evaluating sensor networks in an application-specific way. In this paper, we focus on Mobile Wireless Sensor Networks, which are specific opportunistic networks because of their poor connectivity among the mobile sensors, and thus it is difficult to form a well connected mesh network for transmitting data through end-to-end connections from the sensors to the sink. We propose EXLIOSE (Novel approach to EXtending network LIfetime in Opportunistic SEnsor Networks), a routing protocol that focuses on maximizing network lifetime while keeping high delivery statistics. EXLIOSE is based on a novel routing metric that uses the history of encounters between nodes, and the nodal residual energy. Simulation results show that our approach is able to extend network lifetime and achieve good delivery statistics, as compared to state-of-the-art solutions.","PeriodicalId":220393,"journal":{"name":"2014 IEEE Wireless Communications and Networking Conference (WCNC)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131847016","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 : 2014-04-06DOI: 10.1109/WCNC.2014.6953059
Yi-fan Pan, Jing Wu, C. Long
Given the explosive growth of cameras and LCDs in todays society, cameras get easy access to nearby LCDs and could be utilized for communication access based on visible light communication (VLC). However, there is still no prototype to implement two-way communications. Main challenge lies in the reflection noise since two screens of LCD and/or smartphone are in face-to-face position for two-way communications. In this paper, we advance a step for developing MLCS, a face-to-face mobile-LCD communication system using off-the-shelf camera-mounted LCD and smartphone. More specifically, we propose ADIC, an ADjacent Image Calibration approach to eliminate the reflection noise. ADIC exploits our experimental observation that black-screen image can capture the main reflection noise. To increase the throughput, ADIC presents an adaptive black-screen image calibration method based on the feedback information for characterizing the reflection index of received image. Our approach is evaluated through extensive experiments on smartphone and laptop.
{"title":"MLCS: Face-to-face mobile-LCD communication system based on visible light communication","authors":"Yi-fan Pan, Jing Wu, C. Long","doi":"10.1109/WCNC.2014.6953059","DOIUrl":"https://doi.org/10.1109/WCNC.2014.6953059","url":null,"abstract":"Given the explosive growth of cameras and LCDs in todays society, cameras get easy access to nearby LCDs and could be utilized for communication access based on visible light communication (VLC). However, there is still no prototype to implement two-way communications. Main challenge lies in the reflection noise since two screens of LCD and/or smartphone are in face-to-face position for two-way communications. In this paper, we advance a step for developing MLCS, a face-to-face mobile-LCD communication system using off-the-shelf camera-mounted LCD and smartphone. More specifically, we propose ADIC, an ADjacent Image Calibration approach to eliminate the reflection noise. ADIC exploits our experimental observation that black-screen image can capture the main reflection noise. To increase the throughput, ADIC presents an adaptive black-screen image calibration method based on the feedback information for characterizing the reflection index of received image. Our approach is evaluated through extensive experiments on smartphone and laptop.","PeriodicalId":220393,"journal":{"name":"2014 IEEE Wireless Communications and Networking Conference (WCNC)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133721258","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}
In this paper, we propose TCP-friendly CMT, a novel TCP-friendly Stream Control Transmission Protocol (SCTP)-based Concurrent Multipath Transfer (CMT) solution necessitating the following aims: (i) fairness to TCP flows, (ii) load sharing, and (iii) improve multimedia delivery performance. To satisfy the first requirement, a Weighted Moving congestion window (WM-cwnd) based Additive Increase and Multiplicative Decrease (AIMD)-enhanced congestion control mechanism is designed to make TCP-friendly CMT preserve fairness to TCP flows. A newly WM-cwnd-based data distribution algorithm is further introduced in TCP-friendly CMT to make proper load sharing and improve multimedia delivery performance. Finally, a proposal for saving energy is introduced. The simulation results show how the proposed TCP-friendly CMT solution improves the data delivery performance, as well as users' quality of experience for multimedia streaming service while still remaining fair to the competing TCP flows.
{"title":"TCP-friendly CMT-based multimedia distribution over multi-homed wireless networks","authors":"Yuanlong Cao, Changqiao Xu, Jianfeng Guan, Hongke Zhang","doi":"10.1109/WCNC.2014.6952966","DOIUrl":"https://doi.org/10.1109/WCNC.2014.6952966","url":null,"abstract":"In this paper, we propose TCP-friendly CMT, a novel TCP-friendly Stream Control Transmission Protocol (SCTP)-based Concurrent Multipath Transfer (CMT) solution necessitating the following aims: (i) fairness to TCP flows, (ii) load sharing, and (iii) improve multimedia delivery performance. To satisfy the first requirement, a Weighted Moving congestion window (WM-cwnd) based Additive Increase and Multiplicative Decrease (AIMD)-enhanced congestion control mechanism is designed to make TCP-friendly CMT preserve fairness to TCP flows. A newly WM-cwnd-based data distribution algorithm is further introduced in TCP-friendly CMT to make proper load sharing and improve multimedia delivery performance. Finally, a proposal for saving energy is introduced. The simulation results show how the proposed TCP-friendly CMT solution improves the data delivery performance, as well as users' quality of experience for multimedia streaming service while still remaining fair to the competing TCP flows.","PeriodicalId":220393,"journal":{"name":"2014 IEEE Wireless Communications and Networking Conference (WCNC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115448042","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 : 2014-04-06DOI: 10.1109/WCNC.2014.6953092
Stefan Schmid, S. Mangold, T. Gross
Wireless Local Area Networks (WLANs) based on the IEEE 802.11 standard apply a simple contention-based radio access protocol. Downlink communication from access points to mobile stations shares the radio channel with uplink communication from mobile stations to the access points. This protocol is due to the contention-based design that targets the operation in unlicensed spectrum. In the future, because of the growing demand for wireless communication services, WLANs might not only operate in unlicensed but also in licensed spectrum. However, licensed spectrum favors the use of separate (paired) radio channels for downlink and uplink communication - a setup that requires frequency-division-duplex communication. This paper describes and evaluates the feasibility of a WLAN system operating in paired spectrum with a proof of concept implementation. Our testbed employs off-the-shelf WLAN chips (two per device) and driver modifications that enable the system to operate with downlink-uplink separation while still maintaining the ability to function in unlicensed (single-channel) spectrum. We provide insights based on our testbed and evaluate the performance of our solution.
{"title":"Wireless LAN in paired radio spectrum with downlink-uplink separation","authors":"Stefan Schmid, S. Mangold, T. Gross","doi":"10.1109/WCNC.2014.6953092","DOIUrl":"https://doi.org/10.1109/WCNC.2014.6953092","url":null,"abstract":"Wireless Local Area Networks (WLANs) based on the IEEE 802.11 standard apply a simple contention-based radio access protocol. Downlink communication from access points to mobile stations shares the radio channel with uplink communication from mobile stations to the access points. This protocol is due to the contention-based design that targets the operation in unlicensed spectrum. In the future, because of the growing demand for wireless communication services, WLANs might not only operate in unlicensed but also in licensed spectrum. However, licensed spectrum favors the use of separate (paired) radio channels for downlink and uplink communication - a setup that requires frequency-division-duplex communication. This paper describes and evaluates the feasibility of a WLAN system operating in paired spectrum with a proof of concept implementation. Our testbed employs off-the-shelf WLAN chips (two per device) and driver modifications that enable the system to operate with downlink-uplink separation while still maintaining the ability to function in unlicensed (single-channel) spectrum. We provide insights based on our testbed and evaluate the performance of our solution.","PeriodicalId":220393,"journal":{"name":"2014 IEEE Wireless Communications and Networking Conference (WCNC)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124453685","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 : 2014-04-06DOI: 10.1109/WCNC.2014.6951945
K. Rege, K. Balachandran, Joseph H. Kang, Kemal Karakayali
In this paper, we present a practical Dirty Paper Coding (DPC) scheme using sum codes based on LDPC codes. While a typical sum-code-based DPC scheme uses a constrained decoder as part of the encoding operation, such an approach fails in the case of LDPC codes since the constrained decoder based on a standard LDPC decoder tends to get stuck at highly suboptimal points in typical scenarios. We get around this difficulty via a simple code construction method based on bit-mapping or permutation. Examples included in this paper show that compared to standard communication schemes the proposed DPC scheme yields substantial savings in terms of the transmit energy required to attain desired error performance.
{"title":"A practical dirty paper coding scheme based on LDPC codes","authors":"K. Rege, K. Balachandran, Joseph H. Kang, Kemal Karakayali","doi":"10.1109/WCNC.2014.6951945","DOIUrl":"https://doi.org/10.1109/WCNC.2014.6951945","url":null,"abstract":"In this paper, we present a practical Dirty Paper Coding (DPC) scheme using sum codes based on LDPC codes. While a typical sum-code-based DPC scheme uses a constrained decoder as part of the encoding operation, such an approach fails in the case of LDPC codes since the constrained decoder based on a standard LDPC decoder tends to get stuck at highly suboptimal points in typical scenarios. We get around this difficulty via a simple code construction method based on bit-mapping or permutation. Examples included in this paper show that compared to standard communication schemes the proposed DPC scheme yields substantial savings in terms of the transmit energy required to attain desired error performance.","PeriodicalId":220393,"journal":{"name":"2014 IEEE Wireless Communications and Networking Conference (WCNC)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124520691","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 : 2014-04-06DOI: 10.1109/WCNC.2014.6952200
A. Salhab, S. Zummo
In this paper, we evaluate the outage performance of space diversity systems with the Nth-best antenna selection scheme in the presence of co-channel interference (CCI) and outdated channel information. In this paper, we first derive the cumulative distribution function (CDF) of the end-to-end (e2e) signal-to-interference plus noise ratio (SINR) at the selection scheme combiner output. This CDF is then used to derive a closed-form expressions for the e2e outage probability for the independent non-identically distributed (i.n.i.d.) and independent identically distributed (i.i.d.) cases of diversity branches and interferers' channels. In the analysis, the channels of the desired user and the interferers are assumed to follow Rayleigh distribution. Furthermore, to get more about system insights, the outage performance is studied at high signal-to-noise (SNR) regime where approximate expressions for the outage probability, diversity order, and coding gain are derived and analyzed. Monte-Carlo simulations are provided to validate the derived analytical and asymptotic expressions. Main results illustrate that with a fixed number of interferers of power not scaling with SNR, the system can still achieve diversity gain when more receive antennas are used. Also, findings show that the diversity order of the system linearly increases with decreasing the order of the selected antenna, and vice versa decreases.
{"title":"Outage performance of Nth-best antenna selection diversity systems with co-channel interference and outdated channel information","authors":"A. Salhab, S. Zummo","doi":"10.1109/WCNC.2014.6952200","DOIUrl":"https://doi.org/10.1109/WCNC.2014.6952200","url":null,"abstract":"In this paper, we evaluate the outage performance of space diversity systems with the Nth-best antenna selection scheme in the presence of co-channel interference (CCI) and outdated channel information. In this paper, we first derive the cumulative distribution function (CDF) of the end-to-end (e2e) signal-to-interference plus noise ratio (SINR) at the selection scheme combiner output. This CDF is then used to derive a closed-form expressions for the e2e outage probability for the independent non-identically distributed (i.n.i.d.) and independent identically distributed (i.i.d.) cases of diversity branches and interferers' channels. In the analysis, the channels of the desired user and the interferers are assumed to follow Rayleigh distribution. Furthermore, to get more about system insights, the outage performance is studied at high signal-to-noise (SNR) regime where approximate expressions for the outage probability, diversity order, and coding gain are derived and analyzed. Monte-Carlo simulations are provided to validate the derived analytical and asymptotic expressions. Main results illustrate that with a fixed number of interferers of power not scaling with SNR, the system can still achieve diversity gain when more receive antennas are used. Also, findings show that the diversity order of the system linearly increases with decreasing the order of the selected antenna, and vice versa decreases.","PeriodicalId":220393,"journal":{"name":"2014 IEEE Wireless Communications and Networking Conference (WCNC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114351559","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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