Cyclostationarity-Based Decision Reporting Scheme for Cooperative Spectrum Sensing

Authors:
Yonglei Jiang;Jinfeng Tian;Huaxia Chen;Honglin Hu
Affiliations:
Key Lab of Wireless Sensor Network and Communication, Shanghai Research Center for Wireless Communications (WiCO), Graduate University of Chinese Academy of Sciences (CAS), Shanghai Institute of M ...;Key Lab of Wireless Sensor Network and Communication, Shanghai Research Center for Wireless Communications (WiCO), Graduate University of Chinese Academy of Sciences (CAS), Shanghai Institute of M ...;Key Lab of Wireless Sensor Network and Communication, Shanghai Research Center for Wireless Communications (WiCO), Graduate University of Chinese Academy of Sciences (CAS), Shanghai Institute of M ...;Key Lab of Wireless Sensor Network and Communication, Shanghai Research Center for Wireless Communications (WiCO), Graduate University of Chinese Academy of Sciences (CAS), Shanghai Institute of M ...
Venue:
Wireless Personal Communications: An International Journal
Year:
2013

Citing 6
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Abstract

Cooperative spectrum sensing has emerged as a promising solution to the hidden terminal problem in cognitive radio networks (CRNs). It could significantly promote the sensing capability of CRNs by exploiting space diversity gains in a fading environment. However, owing to the decision reporting overhead, there exists a tradeoff between the system throughput and performance of cooperative spectrum sensing. In this paper, we propose a cyclostationarity-based decision reporting scheme for cooperative spectrum sensing in CRNs with cyclic delay diversity orthogonal frequency division multiplexing (CDD-OFDM). Decision information would be embedded into the CDD-OFDM signals in terms of cyclostationary signatures and shared among cognitive radio (CR) users along with data transmissions. As a result, satisfied system throughput could be achieved without additional spectral or temporal resources consumption when the number of cooperative users increases. Numerical results are presented to show the system throughput enhancement.