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Title: Performance study of a novel selective cooperative spectrum sensing scheme for secondary radios
Authors: Yuan, H.
Chew, Y.H. 
Puthusserypady K, S.
Issue Date: 2008
Citation: Yuan, H., Chew, Y.H., Puthusserypady K, S. (2008). Performance study of a novel selective cooperative spectrum sensing scheme for secondary radios. Proceedings - IEEE Military Communications Conference MILCOM : -. ScholarBank@NUS Repository.
Abstract: In order to opportunistically utilize the licensed frequency band, secondary radios need to sense the spectrum for the presence of the primary radio. Non-cooperative and cooperative sensing schemes have been reported in the literature. In this paper, an improved spectrum sensing scheme, where cooperative sensing is performed only selectively according to a predefined criterion, is proposed. Our studies show that by introducing such intelligence between a pair of secondary radios, a significant improvement when performing primary radio detection can be achieved. We extend our study to the case when primary radio is a multiband (or multicarrier) system with multiple secondary radios each transmits through one subcarrier. A cross-band selective cooperation scheme, which takes the advantage that a radio can be the relay to multiple secondary radios, is proposed. Through analytical studies and simulations, we show that further improvement in primary user detection can be achieved. ©2008 IEEE.
Source Title: Proceedings - IEEE Military Communications Conference MILCOM
ISBN: 9781424426775
DOI: 10.1109/MILCOM.2008.4753434
Appears in Collections:Staff Publications

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