Throughput Maximization for Cognitive Radio Networks with Time-Domain Combining Cooperative Spectrum Sensing

摘要：

　　To improve the sensing performance,cooperation among cognitive users can be utilized to collect space diversity.In this paper,we propose a novel time-domain cooperative spectrum sensing framework,in which the time consumed by reporting for one cognitive user is also utilized for other cognitive users’ sensing.For time varying channels,the novel time-domain combining cooperative spectrum sensing is derived.We focus on the optimal sensing settings to maximize the throughput of the secondary network under the constraint that the primary users are sufficiently protected.Some simple algorithms are also derived to calculate the optimal solutions.Simulation results show that fundamental improvement of the achievable throughput can be obtained by optimal sensing settings.In addition,the novel time-domain cooperative spectrum sensing scheme shows a much larger throughput than cooperative sensing based on general frame structure.

关键词： Time-domain cooperative spectrum sensing cognitive radio networks throughput maximization optimal sensing setting

作者: Hang Hu Ning Li Lianguo Wu Youyun Xu Yande Chen

作者单位: Institute of Communications Engineering, PLA University of Science and Technology Nanjing, 210007, China

会议类型: 国际会议

会议名称: 2012 IEEE 14th International Conference on Communication Technology(2012年第十四届通信技术国际会议(ICCT 2012))

会议地点: 成都

会议语种:英文

页码: 325-329

在线出版日期: 2012-11-09（万方平台首次上网日期，不代表论文的发表时间）