Topology control in multi-channel cognitive radio networks with non-uniform node arrangements

Chen, P-Y; Karyotis, V; Papavassiliou, S; Chen, K-C

dc.contributor.author	Chen, P-Y	en
dc.contributor.author	Karyotis, V	en
dc.contributor.author	Papavassiliou, S	en
dc.contributor.author	Chen, K-C	en
dc.date.accessioned	2014-03-01T02:47:30Z
dc.date.available	2014-03-01T02:47:30Z
dc.date.issued	2011	en
dc.identifier.issn	15301346	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/33182
dc.subject	Distributed Topology Control	en
dc.subject	Multi-channel Cognitive Radio networks	en
dc.subject	Non-uniform node arrangements	en
dc.subject	Virtual common control channel	en
dc.subject.other	Analysis and simulation	en
dc.subject.other	Channel conditions	en
dc.subject.other	Cognitive radio	en
dc.subject.other	Cognitive radio network	en
dc.subject.other	Control channels	en
dc.subject.other	Efficient power	en
dc.subject.other	Environmental change	en
dc.subject.other	Local information	en
dc.subject.other	Multi-channel	en
dc.subject.other	Network connectivity	en
dc.subject.other	Non-uniform node arrangements	en
dc.subject.other	One step	en
dc.subject.other	Primary systems	en
dc.subject.other	Topology control	en
dc.subject.other	User activity	en
dc.subject.other	Virtual common control channel	en
dc.subject.other	Cognitive systems	en
dc.subject.other	Computer simulation	en
dc.subject.other	Radio systems	en
dc.subject.other	Topology	en
dc.subject.other	Radio	en
dc.title	Topology control in multi-channel cognitive radio networks with non-uniform node arrangements	en
heal.type	conferenceItem	en
heal.identifier.primary	10.1109/ISCC.2011.5983978	en
heal.identifier.secondary	http://dx.doi.org/10.1109/ISCC.2011.5983978	en
heal.identifier.secondary	5983978	en
heal.publicationDate	2011	en
heal.abstract	Cognitive Radio (CR) techniques have been developed to allow ad hoc users to communicate with each other by exploiting the licensed bands of primary systems without disturbing the entrenched users. In this work, we take current approaches one step ahead and combine Topology Control (TC) techniques with CR technology, in order to improve operation and performance, even under the stringent and non-uniform arrangements of CR networks (CRNs). We propose a novel node-degree based Topology Control approach, denoted by Enhanced Cognitive Nearest Random Neighbor (e-CNRN), for multi-channel CRNs, aiming at maintaining network connectivity and adapting to environmental changes such as primary user activity and channel conditions. Compared with TC protocols in conventional ad hoc networks, e-CNRN requires only minimal local information and is specially designed to perform under non-uniform node arrangements, rendering e-CNRN a generic and robust distributed TC approach, especially suitable for multichannel CRNs as well. In addition, we leverage e-CNRN for distributively establishing a virtual common control channel for multi-channel CRNs. Through analysis and simulations we validate that e-CNRN guarantees network connectivity, while achieving efficient power control. © 2011 IEEE.	en
heal.journalName	Proceedings - IEEE Symposium on Computers and Communications	en
dc.identifier.doi	10.1109/ISCC.2011.5983978	en
dc.identifier.spage	1033	en
dc.identifier.epage	1037	en