Title :
Performance analysis of cooperative spectrum sensing in different fading channels
Author :
Duan, Jiaqi ; Li, Yong
Author_Institution :
Sch. of Electron. & Inf., Northwestern Polytech. Univ., Xi´´an, China
Abstract :
Spectrum sensing is the key component of cognitive radio technology. However, detection is compromised when a user experiences shadowing or fading effects. Thus, cooperative spectrum sensing is proposed to optimize the sensing performance. We focus on cooperative spectrum sensing in Rayleigh, Ricean and Nakagami fading channels. Centralized detection approaches, different data fusion rules and closed form expressions are used for providing a comprehensive picture of cooperative energy detection in various fading channels. The analysis and comparison can be used for future reference of spectrum sensing in the cognitive radio networks´ research and designing.
Keywords :
Nakagami channels; Rayleigh channels; Rician channels; cognitive radio; sensor fusion; Nakagami fading channels; Rayleigh fading channels; Ricean fading channels; centralized detection; closed form expressions; cognitive radio technology; cooperative energy detection; cooperative spectrum sensing; data fusion; AWGN; Additive white noise; Chromium; Cognitive radio; Fading; Interference; Measurement; Performance analysis; Shadow mapping; Signal to noise ratio; cognitive radio; cooperative spectrum sensing; energy detection; fading channels;
Conference_Titel :
Computer Engineering and Technology (ICCET), 2010 2nd International Conference on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4244-6347-3
DOI :
10.1109/ICCET.2010.5485771
