Uplink power control in QoS-aware multi-service CDMA wireless networks

Tsiropoulou, EE; Kastrinogiannis, T; Papavassiliou, S

dc.contributor.author	Tsiropoulou, EE	en
dc.contributor.author	Kastrinogiannis, T	en
dc.contributor.author	Papavassiliou, S	en
dc.date.accessioned	2014-03-01T01:32:22Z
dc.date.available	2014-03-01T01:32:22Z
dc.date.issued	2009	en
dc.identifier.issn	17962021	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/20099
dc.subject	CDMA networks	en
dc.subject	Multimedia services	en
dc.subject	Power control	en
dc.subject	QoS	en
dc.subject	Resource allocation	en
dc.subject.other	CDMA networks	en
dc.subject.other	CDMA wireless networks	en
dc.subject.other	Channel conditions	en
dc.subject.other	Degree of satisfaction	en
dc.subject.other	Equilibrium point	en
dc.subject.other	Existence and uniqueness	en
dc.subject.other	Iterative algorithm	en
dc.subject.other	Modeling and simulation	en
dc.subject.other	Multi-services	en
dc.subject.other	Multiple services	en
dc.subject.other	Nash equilibrium point	en
dc.subject.other	Non-cooperative	en
dc.subject.other	Numerical results	en
dc.subject.other	Physical limitations	en
dc.subject.other	Power Consumption	en
dc.subject.other	QoS	en
dc.subject.other	QoS requirements	en
dc.subject.other	Throughput performance	en
dc.subject.other	Uplink power controls	en
dc.subject.other	Utility functions	en
dc.subject.other	Ad hoc networks	en
dc.subject.other	Code division multiple access	en
dc.subject.other	Computer simulation	en
dc.subject.other	Electric power utilization	en
dc.subject.other	Multimedia services	en
dc.subject.other	Multimedia systems	en
dc.subject.other	Planning	en
dc.subject.other	Power control	en
dc.subject.other	Resource allocation	en
dc.subject.other	Quality of service	en
dc.title	Uplink power control in QoS-aware multi-service CDMA wireless networks	en
heal.type	journalArticle	en
heal.identifier.primary	10.4304/jcm.4.9.654-668	en
heal.identifier.secondary	http://dx.doi.org/10.4304/jcm.4.9.654-668	en
heal.publicationDate	2009	en
heal.abstract	In this paper the problem of QoS-driven power control in the uplink of CDMA wireless networks supporting multiple services is considered. Due to the need for supporting simultaneously various services with diverse QoS requirements, each user is associated with a nested utility function which appropriately represents his degree of satisfaction in relation to the expected tradeoff between his QoS-aware actual uplink throughput performance and the corresponding power consumption. Based on this framework, the problem is formulated as a non-convex non-cooperative Multi-Service Uplink Power Control (MSUPC) game where users aim selfishly at maximizing their utility-based performance under the imposed physical limitations. We first prove the existence and uniqueness of a Nash equilibrium point of the MSUPC game, and then a decentralized iterative algorithm to obtain MSUPC game's equilibrium point is introduced. Finally, through modeling and simulation, the operation and features of the proposed framework and the decentralized MSUPC algorithm are evaluated with respect to the fulfillment of assorted services' QoS requirements, while numerical results and relevant discussions that demonstrate the tradeoffs among users' channel conditions, corresponding power consumption and utility-based performance are presented. © 2009 ACADEMY PUBLISHER.	en
heal.journalName	Journal of Communications	en
dc.identifier.doi	10.4304/jcm.4.9.654-668	en
dc.identifier.volume	4	en
dc.identifier.issue	9	en
dc.identifier.spage	654	en
dc.identifier.epage	668	en