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Development and Experimental Evaluation of Cyclostationarity-Based Signal Identification Equipment for Cognitive Radios
Hiroki HARADA Hiromasa FUJII Shunji MIURA Hidetoshi KAYAMA Yoshiki OKANO Tetsuro IMAI
IEICE TRANSACTIONS on Communications
Publication Date: 2012/04/01
Online ISSN: 1745-1345
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Section on Cognitive Radio and Heterogeneous Wireless Networks in Conjunction with Main Topics of CrownCom2011)
cognitive radio, spectrum sharing, cyclostationarity-based signal identification, test bed experiment, spatial channel emulator,
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An important and widely considered signal identification technique for cognitive radios is cyclostationarity-based feature detection because this method does not require time and frequency synchronization and prior information except for information concerning cyclic autocorrelation features of target signals. This paper presents the development and experimental evaluation of cyclostationarity-based signal identification equipment. A spatial channel emulator is used in conjunction with the equipment that provides an environment to evaluate realistic spectrum sharing scenarios. The results reveal the effectiveness of the cyclostationarity-based signal identification methodology in realistic spectrum sharing scenarios, especially in terms of the capability to identify weak signals.