计算机应用与软件2013，Vol.30Issue(4)：227-230,4.DOI:10.3969/j.issn.1000-386x.2013.04.065
认知无线电中合作频谱感知的分簇优化研究
ON CLUSTERING OPTIMISATION OF COOPERATIVE SPECTRUM SENSING IN COGNITIVE RADIO
摘要
Abstract
Cooperative spectrum sensing can greatly improve the sensing performance in cognitive radio. However, mutual exchange of information between nodes will take up the system resource and produce a transmission delay, so too many cooperative nods will improve the performance at the cost of bringing too high the communication overhead, and the joining of some of the nodes with poor sensing performance will reduce overall detection performance instead. To solve this problem, the clustering technology can be applied, it selects the appropriate node as the cluster head and optimise the number of sensing nodes inside the cluster. Simulation results show that in condition of meeting certain target detection probability, it is able to find the existence of an optimal number of nodes within a cluster, which can enable the system to attain the maximisation of effective information throughput.关键词
认知无线电/频谱感知/合作/虚警概率Key words
Cognitive radio/ Spectrum sensing/ Cooperative/ Probability of false alarm分类
信息技术与安全科学引用本文复制引用
薛伟,金智明..认知无线电中合作频谱感知的分簇优化研究[J].计算机应用与软件,2013,30(4):227-230,4.
