We focus on the energy detection based spectrum sensing in a cognitive radio system and provide closed-form expressions to evaluate the detection performances. Moreover, we use multiple antennas at the sensing node to exploit the spatial diversity. Besides, a generalized selection combining (GSC) scheme over independent and identically distributed (IID) and exponential correlated Rayleigh fading channels is used to improve the sensing performance especially in low signal-to-noise regimes.
목차
Abstract 1. Introduction 2. System model 3. Detection with GSC 3.1 IID Rayleigh channels 3.2 Correlated channels 4. Numerical results and conclusion Acknowledgement References
키워드
Energy detectionGSCCognitive Radio
저자
Le Thanh Tan [ Department of Electric Engineering, University of Ulsan, Korea ]
Jin Hee Lee [ Department of Electric Engineering, University of Ulsan, Korea ]
Hyung Yun Kong [ Department of Electric Engineering, University of Ulsan, Korea ]
Corresponding Author