Detection Reliability and Throughput Analysis for Cooperative Spectrum Sensing in Cognitive Radio Networks

摘要：

In cognitive radio networks (CRNs), cooperative spectrum sensing technology could overcome the impact from shadow fading and noise uncertainty; however, cognitive radio users with different signal-to-noise ratios (SNRs) would cause the unreliable detection performance when making a decision in the information fusion center. Therefore, a novel cooperative spectrum sensing scheme which focus on the reliability of cognitive radio users is presented. The proposed approach does not select all of the cognitive radio users but the ones whose SNR is beyond the average SNR of the whole users for high reliability. Moreover, the detection and throughput performance is investigated. Simulation results illustrate this approach could enhances the detection probability by comparing to the conventional cooperative algorithm. Besides, it also could lead to higher throughput within a short spectrum sensing time.

关键词： cognitive radio cooperative spectrum sensing detection reliability throughput

作者: Hong Du Zaixue Wei Yu Wang Dacheng Yang

作者单位: Wireless Theory and Technology Lab, Beijing University of Posts and Telecommunications, Beijing,China

会议类型: 国际会议

会议名称: 2011 International Conference on Advanced Materials and Engineering Materials(2011先进材料与工程材料国际会议 ICAMEM 2011)

会议地点: 沈阳

会议语种:英文

页码: 668-674

在线出版日期: 2011-11-22（万方平台首次上网日期，不代表论文的发表时间）