| 认知无线电网络中的分布式动态频谱共享 |
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| 引用本文： | 邱晶,周正.认知无线电网络中的分布式动态频谱共享[J].北京邮电大学学报,2009,32(1):69-72. |
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| 作者姓名： | 邱晶 周正 |
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| 作者单位： | 重庆大学,通信工程学院,重庆,400044;泛网无线通信教育部重点实验室(北京邮电大学),北京,100876;泛网无线通信教育部重点实验室(北京邮电大学),北京,100876 |
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| 摘 要： | 研究了基于认知无线电技术的动态频谱共享，基于重复博弈理论设计了一种分布式动态信道接入和功率分配算法。在不影响主用户通信的情况下，每个认知用户能够根据自己的QoS需求和本地信息进行分布式信道选择和功率分配，在系统频谱效率和业务QoS之间进行有效折中。该算法具有较好的收敛性，能最大程度地满足用户的业务需求，更适用于异构网络和业务的应用。
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| 关 键 词： | 认知无线电 动态频谱共享 博弈论 |
| 收稿时间： | 2008-6-4 |
| 修稿时间： | 2008-10-26 |
Dynatic Spectrum Sharing Strategy in Cognitive Radio Systems |
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| QIU Jing,ZHOU Zheng.Dynatic Spectrum Sharing Strategy in Cognitive Radio Systems[J].Journal of Beijing University of Posts and Telecommunications,2009,32(1):69-72. |
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| Authors: | QIU Jing ZHOU Zheng |
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| Abstract: | A repeated game theory based distributed dynamic channel selection and power control algorithm for dynamic spectrum sharing in cognitive radio network was proposed. Without interfering with primary users, each cognitive user could select channels along with transmission power when considering its specific QoS requirements and local information. The proposed algorithm can make an efficient trade-off between system spectrum efficiency and user QoS requirement, and exhibits rapid convergence. It can meet the user-specific QoS requirement to the full extent and especially suites for heterogeneous networks. |
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| Keywords: | Cognitive Radio Dynamic Spectrum Sharing Game Theory |
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