Joint power control and relay selection scheme for cognitive two-way relay networks
A joint power control and relay selection scheme is considered for a cooperative and cognitive radio system where a secondary network shares spectrum with the primary network. In the secondary network, two secondary users （SUs） communicate with each other via an assist relay. The main point is to pr...
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| Veröffentlicht in: | Journal of systems engineering and electronics 2013-08, Vol.24 (4), p.571-578 |
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| container_title | Journal of systems engineering and electronics |
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| creator | Yang, Dingcheng Xiao, Lin Xu, Jisheng Li, Wengang |
| description | A joint power control and relay selection scheme is considered for a cooperative and cognitive radio system where a secondary network shares spectrum with the primary network. In the secondary network, two secondary users （SUs） communicate with each other via an assist relay. The main point is to provide the best system performance to SUs while maintaining the interference power at primary user （PU） under a certain level. Using convex optimization, a closed-form solution is obtained when optimizing the power allocation among the two nodes and relay. Based on this result, a joint power control and relay selection scheme with fewer variable dimensions is proposed to maximize the achievable rate of the secondary system. Simulation results demonstrate that the sum rate of the cognitive two-way relay network increases compared with a random relay selection and fixed power allocation. |
| doi_str_mv | 10.1109/JSEE.2013.00066 |
| format | Article |
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In the secondary network, two secondary users （SUs） communicate with each other via an assist relay. The main point is to provide the best system performance to SUs while maintaining the interference power at primary user （PU） under a certain level. Using convex optimization, a closed-form solution is obtained when optimizing the power allocation among the two nodes and relay. Based on this result, a joint power control and relay selection scheme with fewer variable dimensions is proposed to maximize the achievable rate of the secondary system. Simulation results demonstrate that the sum rate of the cognitive two-way relay network increases compared with a random relay selection and fixed power allocation.</description><identifier>ISSN: 1004-4132</identifier><identifier>EISSN: 1004-4132</identifier><identifier>DOI: 10.1109/JSEE.2013.00066</identifier><language>eng</language><publisher>Information Engineering School, Nanchang University, Nanchang 330031, China%School of Electronics and Information, Wuhan University, Wuhan 430079, China%National Key Lab of ISN, Xidian University, Xi'an 710126, China</publisher><subject>Allocations ; Cognitive radio ; Mathematical analysis ; Networks ; Optimization ; Power control ; Relay ; Relay networks ; 中继 ; 二次系统 ; 功率控制 ; 封闭形式 ; 干扰功率 ; 无线电系统 ; 网络共享 ; 辅助继电器</subject><ispartof>Journal of systems engineering and electronics, 2013-08, Vol.24 (4), p.571-578</ispartof><rights>Copyright © Wanfang Data Co. Ltd. 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In the secondary network, two secondary users （SUs） communicate with each other via an assist relay. The main point is to provide the best system performance to SUs while maintaining the interference power at primary user （PU） under a certain level. Using convex optimization, a closed-form solution is obtained when optimizing the power allocation among the two nodes and relay. Based on this result, a joint power control and relay selection scheme with fewer variable dimensions is proposed to maximize the achievable rate of the secondary system. Simulation results demonstrate that the sum rate of the cognitive two-way relay network increases compared with a random relay selection and fixed power allocation.</description><subject>Allocations</subject><subject>Cognitive radio</subject><subject>Mathematical analysis</subject><subject>Networks</subject><subject>Optimization</subject><subject>Power control</subject><subject>Relay</subject><subject>Relay networks</subject><subject>中继</subject><subject>二次系统</subject><subject>功率控制</subject><subject>封闭形式</subject><subject>干扰功率</subject><subject>无线电系统</subject><subject>网络共享</subject><subject>辅助继电器</subject><issn>1004-4132</issn><issn>1004-4132</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2013</creationdate><recordtype>article</recordtype><recordid>eNpNkM9PwjAUxxejiUQ5e503Dw5e165bj4bgD0LiAT03pbzBcLTQDif-9XaCie2hr8nn-33ffKPohsCAEBDDyWw8HqRA6AAAOD-LegSAJYzQ9PzffBn1vV9Dd3JIU-hFs4mtTBNvbYsu1tY0ztaxMovYYa0OsccadVNZE3u9wg3Gpe2wpama6hPjprVJG7AjbDD83Ye_ji5KVXvsn96r6P1x_DZ6TqavTy-jh2miaV40iUqxVEqjokwgh0UILkDpTChg4dIM2EJnXLC5ECnhvMhZprM55ciLIkdGr6L7o2-rTKnMUq7t3pmwUX41S31YfK-9xK6U4AY04HdHfOvsbo--kZvKa6xrZdDuvSSMFXnGMiICOjyi2lnvHZZy66qNcgdJQHaFy65w2XnL38KD4vakWFmz3FUhzZ-EcSE4o4z-ACxkfdQ</recordid><startdate>20130801</startdate><enddate>20130801</enddate><creator>Yang, Dingcheng</creator><creator>Xiao, Lin</creator><creator>Xu, Jisheng</creator><creator>Li, Wengang</creator><general>Information Engineering School, Nanchang University, Nanchang 330031, China%School of Electronics and Information, Wuhan University, Wuhan 430079, China%National Key Lab of ISN, Xidian University, Xi'an 710126, China</general><scope>2RA</scope><scope>92L</scope><scope>CQIGP</scope><scope>~WA</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SP</scope><scope>8FD</scope><scope>L7M</scope><scope>2B.</scope><scope>4A8</scope><scope>92I</scope><scope>93N</scope><scope>PSX</scope><scope>TCJ</scope></search><sort><creationdate>20130801</creationdate><title>Joint power control and relay selection scheme for cognitive two-way relay networks</title><author>Yang, Dingcheng ; Xiao, Lin ; Xu, Jisheng ; Li, Wengang</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c378t-a2efaacea349e60d00690ac59a040403504dc5694b9921668745c5b36e6887e43</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2013</creationdate><topic>Allocations</topic><topic>Cognitive radio</topic><topic>Mathematical analysis</topic><topic>Networks</topic><topic>Optimization</topic><topic>Power control</topic><topic>Relay</topic><topic>Relay networks</topic><topic>中继</topic><topic>二次系统</topic><topic>功率控制</topic><topic>封闭形式</topic><topic>干扰功率</topic><topic>无线电系统</topic><topic>网络共享</topic><topic>辅助继电器</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Yang, Dingcheng</creatorcontrib><creatorcontrib>Xiao, Lin</creatorcontrib><creatorcontrib>Xu, Jisheng</creatorcontrib><creatorcontrib>Li, Wengang</creatorcontrib><collection>中文科技期刊数据库</collection><collection>中文科技期刊数据库-CALIS站点</collection><collection>中文科技期刊数据库-7.0平台</collection><collection>中文科技期刊数据库- 镜像站点</collection><collection>CrossRef</collection><collection>Electronics & Communications Abstracts</collection><collection>Technology Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Wanfang Data Journals - Hong Kong</collection><collection>WANFANG Data Centre</collection><collection>Wanfang Data Journals</collection><collection>万方数据期刊 - 香港版</collection><collection>China Online Journals (COJ)</collection><collection>China Online Journals (COJ)</collection><jtitle>Journal of systems engineering and electronics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Yang, Dingcheng</au><au>Xiao, Lin</au><au>Xu, Jisheng</au><au>Li, Wengang</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Joint power control and relay selection scheme for cognitive two-way relay networks</atitle><jtitle>Journal of systems engineering and electronics</jtitle><addtitle>Journal of Systems Engineering and Electronics</addtitle><date>2013-08-01</date><risdate>2013</risdate><volume>24</volume><issue>4</issue><spage>571</spage><epage>578</epage><pages>571-578</pages><issn>1004-4132</issn><eissn>1004-4132</eissn><abstract>A joint power control and relay selection scheme is considered for a cooperative and cognitive radio system where a secondary network shares spectrum with the primary network. 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| identifier | ISSN: 1004-4132 |
| ispartof | Journal of systems engineering and electronics, 2013-08, Vol.24 (4), p.571-578 |
| issn | 1004-4132 1004-4132 |
| language | eng |
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| source | IEEE Power & Energy Library; EZB-FREE-00999 freely available EZB journals |
| subjects | Allocations Cognitive radio Mathematical analysis Networks Optimization Power control Relay Relay networks 中继 二次系统 功率控制 封闭形式 干扰功率 无线电系统 网络共享 辅助继电器 |
| title | Joint power control and relay selection scheme for cognitive two-way relay networks |
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