TY - GEN
T1 - A weighted cooperative spectrum sensing in cognitive radio networks
AU - Xiao, Lin
AU - Liu, Kai
AU - Ma, Lin
PY - 2010
Y1 - 2010
N2 - In cognitive radio networks (CRNs), different received signal-to-noise ratios (SNRs) of secondary users (SUs) lead to different reliability of their local spectrum sensing decisions, and then greatly affect sensing capability of cooperative spectrum sensing. Cooperative spectrum sensing with traditional hard decisions can not improve sensing capability efficiently due to allocating the same weight to SUs' decisions. Therefore, a weighted cooperative spectrum sensing (WCSS) is proposed for CRNs to improve sensing capability. It obtains weights of SUs' decisions from their average received SNRs, integrates both their independent decisions and weights to fuse data, and makes a final sensing decision. Simulation results show that compared to cooperative spectrum sensing with traditional hard decisions, WCSS performs better at low SNR.
AB - In cognitive radio networks (CRNs), different received signal-to-noise ratios (SNRs) of secondary users (SUs) lead to different reliability of their local spectrum sensing decisions, and then greatly affect sensing capability of cooperative spectrum sensing. Cooperative spectrum sensing with traditional hard decisions can not improve sensing capability efficiently due to allocating the same weight to SUs' decisions. Therefore, a weighted cooperative spectrum sensing (WCSS) is proposed for CRNs to improve sensing capability. It obtains weights of SUs' decisions from their average received SNRs, integrates both their independent decisions and weights to fuse data, and makes a final sensing decision. Simulation results show that compared to cooperative spectrum sensing with traditional hard decisions, WCSS performs better at low SNR.
KW - Cognitive radio networks
KW - Cooperative spectrum sensing
KW - Weight
UR - https://www.scopus.com/pages/publications/78650457358
U2 - 10.1109/ICINA.2010.5636781
DO - 10.1109/ICINA.2010.5636781
M3 - 会议稿件
AN - SCOPUS:78650457358
SN - 9781424481057
T3 - ICINA 2010 - 2010 International Conference on Information, Networking and Automation, Proceedings
SP - V245-V248
BT - ICINA 2010 - 2010 International Conference on Information, Networking and Automation, Proceedings
T2 - 2010 International Conference on Information, Networking and Automation, ICINA 2010
Y2 - 17 October 2010 through 19 October 2010
ER -