Cooperative spectrum sensing via coherence detection
Efficient and reliable spectrum sensing plays a critical role in cognitive radio networks. This paper proposes a cooperative sensing scheme that detects the existence of a common signal component in the signals received by multiple geographically distributed radios. The scheme assumes that signals received by different radios display strong coherence if they have a common source. Detection of this coherence in a wireless environment is studied, especially when the transmitted signal is distorted by multipath channels.
Cognitive radio, Coherence detection, Spectrum sensing
Zou, Qiyue, Songfeng Zheng, and Ali H. Sayed. "Cooperative spectrum sensing via coherence detection." In 2009 IEEE/SP 15th Workshop on Statistical Signal Processing, pp. 610-613. IEEE, 2009.
IEEE Workshop on Statistical Signal Processing Proceedings