Joint power control and spectrum access in cognitive radio networks
Cognitive Radio (CR) is proposed to overcome the problem of spectrum underutilization and congestion caused by the increasing demand of wireless services and applications. It is still a challenge to improve the spectrum efficiency of the secondary network for Secondary (unlicensed) Users (SUs) and a...
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| Published in: | Journal of network and computer applications Vol. 41; pp. 379 - 388 |
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| Format: | Journal Article |
| Language: | English |
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01.05.2014
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| ISSN: | 1084-8045, 1095-8592 |
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| Abstract | Cognitive Radio (CR) is proposed to overcome the problem of spectrum underutilization and congestion caused by the increasing demand of wireless services and applications. It is still a challenge to improve the spectrum efficiency of the secondary network for Secondary (unlicensed) Users (SUs) and avoid imposing interference to the Primary (licensed) Users (PUs). In this paper, we propose a joint power control and spectrum access scheme for the CR network. By addressing the power allocation problem and exploiting a Dynamic Spectrum Access (DSA) scheme (which is based on the power allocation and also aims at improving the secondary network throughput) from a cooperative-game perspective, our joint scheme can improve the throughput of the secondary network and guarantee the SUs׳ fairness, without imposing overlarge interference to the PUs. Numerical results reflect that, compared with previous studies, our joint power control and spectrum access scheme presents advantages in comprehensive performance (e.g., spectrum efficiency, fairness and throughput). Beyond a theoretical framework, we solve the optimization problem with the Differential Evolution (DE) algorithm which is more feasible to be implemented in practice. |
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| AbstractList | Cognitive Radio (CR) is proposed to overcome the problem of spectrum underutilization and congestion caused by the increasing demand of wireless services and applications. It is still a challenge to improve the spectrum efficiency of the secondary network for Secondary (unlicensed) Users (SUs) and avoid imposing interference to the Primary (licensed) Users (PUs). In this paper, we propose a joint power control and spectrum access scheme for the CR network. By addressing the power allocation problem and exploiting a Dynamic Spectrum Access (DSA) scheme (which is based on the power allocation and also aims at improving the secondary network throughput) from a cooperative-game perspective, our joint scheme can improve the throughput of the secondary network and guarantee the SUs׳ fairness, without imposing overlarge interference to the PUs. Numerical results reflect that, compared with previous studies, our joint power control and spectrum access scheme presents advantages in comprehensive performance (e.g., spectrum efficiency, fairness and throughput). Beyond a theoretical framework, we solve the optimization problem with the Differential Evolution (DE) algorithm which is more feasible to be implemented in practice. |
| Author | Guo, Lei Lu, Xiaobing Huang, Yang Song, Qingyang Ning, Zhaolong |
| Author_xml | – sequence: 1 givenname: Qingyang surname: Song fullname: Song, Qingyang email: songqingyang@ise.neu.edu.cn – sequence: 2 givenname: Zhaolong surname: Ning fullname: Ning, Zhaolong email: zhaolongning@gmail.com – sequence: 3 givenname: Yang surname: Huang fullname: Huang, Yang email: hyocean198927@gmail.com – sequence: 4 givenname: Lei surname: Guo fullname: Guo, Lei email: guolei@ise.neu.edu.cn – sequence: 5 givenname: Xiaobing surname: Lu fullname: Lu, Xiaobing email: jerrylu0908@gmail.com |
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| Cites_doi | 10.1109/CEC.2005.1554725 10.1109/TVT.2009.2018258 10.2307/1907266 10.1109/JSAC.2011.110405 10.1016/j.jnca.2012.04.004 10.1109/TWC.2008.060869 10.1057/palgrave.jors.2600523 10.1109/TNET.2009.2026645 10.2307/1914280 10.1023/A:1008202821328 10.1109/MWC.2012.6155873 10.1016/j.jnca.2013.01.007 10.1145/1859955.1859963 10.1109/TVT.2011.2158673 10.1109/JSAC.2007.070803 10.1109/TVT.2009.2039502 10.1109/TVT.2010.2096545 10.1109/JPROC.2009.2015717 10.1109/JSAC.2012.120107 10.2307/1911749 |
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| Keywords | Cognitive radio (CR) networks Dynamic spectrum access (DSA) Wireless networks Power control Differential evolution (DE) Evolutionary algorithm Equity Distributed system Power allocation Efficiency Differential evolution Wireless network Transmission rate Cooperative game Mathematical programming Software radio Power spectrum |
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| SubjectTerms | Algorithmics. Computability. Computer arithmetics Applied sciences Cognitive radio (CR) networks Computer science; control theory; systems Computer systems and distributed systems. User interface Differential evolution (DE) Dynamic spectrum access (DSA) Equipments and installations Exact sciences and technology Mobile radiocommunication systems Power control Radiocommunications Software Telecommunications Telecommunications and information theory Theoretical computing Wireless networks |
| Title | Joint power control and spectrum access in cognitive radio networks |
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