Selective sensing and transmission for multi-channel cognitive radio networks

Xu, Y; Li, Y; Zhao, Y; Zou, H; Vasilakos, AV

dc.contributor.author	Xu, Y	en
dc.contributor.author	Li, Y	en
dc.contributor.author	Zhao, Y	en
dc.contributor.author	Zou, H	en
dc.contributor.author	Vasilakos, AV	en
dc.date.accessioned	2014-03-01T02:47:27Z
dc.date.available	2014-03-01T02:47:27Z
dc.date.issued	2011	en
dc.identifier.issn	1687-1472	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/33161
dc.subject	Cognitive radio	en
dc.subject	selective sensing and access	en
dc.subject	continuous time Markov chain	en
dc.subject.classification	Engineering, Electrical & Electronic	en
dc.subject.classification	Telecommunications	en
dc.subject.other	Channel utilization	en
dc.subject.other	Cognitive radio network	en
dc.subject.other	Continuous time Markov chain	en
dc.subject.other	Multi-channel	en
dc.subject.other	Parameter T	en
dc.subject.other	Selective sensing	en
dc.subject.other	Spectrum holes	en
dc.subject.other	Markov processes	en
dc.subject.other	Radio broadcasting	en
dc.subject.other	Radio transmission	en
dc.title	Selective sensing and transmission for multi-channel cognitive radio networks	en
heal.type	conferenceItem	en
heal.identifier.primary	10.1109/INFCOMW.2011.5928861	en
heal.identifier.secondary	http://dx.doi.org/10.1109/INFCOMW.2011.5928861	en
heal.identifier.secondary	5928861	en
heal.language	English	en
heal.publicationDate	2011	en
heal.abstract	In this article, we consider a continuous time Markov chain (CTMC) modeled multi-channel CR network, where there are multiple independent primary users and one slotted secondary user (SU) who can access multiple channels simultaneously. To maximize SU's temporal channel utilization while limiting its interference to PUs, a selective sensing and selective access (SS-SA) strategy is proposed. With SS strategy, each channel is sensed almost periodically with different periods according to parameter T-c, which reflects the maximal period that each channel should be probed. The effect of sensing period is also considered. When the sensing period is suitable, the SA strategy can be regarded as greedy access strategy. Numerical simulations illustrate that T-c is a valid measurement to indicate how often each channel should be sensed, and with SS-SA strategy, SU can effectively utilize the channels and consume less energy and time for sensing than adopting reference strategies.	en
heal.publisher	SPRINGER	en
heal.journalName	2011 IEEE Conference on Computer Communications Workshops, INFOCOM WKSHPS 2011	en
dc.identifier.doi	10.1109/INFCOMW.2011.5928861	en
dc.identifier.isi	ISI:000294913400001	en
dc.identifier.spage	47	en
dc.identifier.epage	51	en