Cooperative Spectrum Sensing Using Quantized Energy Statistics in the Absence of Dedicated Reporting Channel

摘要: Reporting channels are essential for implementing cooperative spectrum sensing (CSS) in cognitive radio technology. In this paper, a novel decentralized CSS scheme capable of operating the absence dedicated reporting is presented. Existing schemes which operate rely on transmission hard decision bits from cooperating secondary users (CSUs). The proposed supports mobile sensor termed as leading node (LSSN) to assist contending transmitter sensing. Unlike existing schemes, framework offers freedom using multiple transmitting quantized version test statistics between user (SU) nodes. order reduce energy consumption and system complexity, CSUs do not take part but only act relays retransmitting LSSN SU transmitter. network protocol also assists transmitters avoiding collisions with each other. Closed form expressions probability false alarm detection have been derived. Monte-Carlo simulations used validate analytical expressions. can outperform recently best-selection when number less lie an area poor primary signal reception.