Utility-based uplink power control in CDMA wireless networks with real-time services

Kastrinogiannis, T; Tsiropoulou, E-E; Papavassiliou, S

dc.contributor.author	Kastrinogiannis, T	en
dc.contributor.author	Tsiropoulou, E-E	en
dc.contributor.author	Papavassiliou, S	en
dc.date.accessioned	2014-03-01T02:45:51Z
dc.date.available	2014-03-01T02:45:51Z
dc.date.issued	2008	en
dc.identifier.issn	03029743	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/32426
dc.subject	QoS	en
dc.subject	Real-time services	en
dc.subject	Utility-based resource allocation	en
dc.subject	Wireless networks	en
dc.subject.other	Ad hoc networks	en
dc.subject.other	Beamforming	en
dc.subject.other	Code division multiple access	en
dc.subject.other	Game theory	en
dc.subject.other	Information services	en
dc.subject.other	Planning	en
dc.subject.other	Power control	en
dc.subject.other	Real time systems	en
dc.subject.other	Resource allocation	en
dc.subject.other	Signal to noise ratio	en
dc.subject.other	Throughput	en
dc.subject.other	Allocation processes	en
dc.subject.other	Cdma wireless networks	en
dc.subject.other	Degree of satisfactions	en
dc.subject.other	Existence and uniquenesses	en
dc.subject.other	In channels	en
dc.subject.other	Iterative algorithms	en
dc.subject.other	Maximum powers	en
dc.subject.other	Nash equilibrium points	en
dc.subject.other	Non-cooperative games	en
dc.subject.other	Physical limitations	en
dc.subject.other	Power allocations	en
dc.subject.other	Power consumptions	en
dc.subject.other	Pre-requisites	en
dc.subject.other	QoS	en
dc.subject.other	QOS requirements	en
dc.subject.other	Real-time services	en
dc.subject.other	Simulation and analyses	en
dc.subject.other	Throughput performances	en
dc.subject.other	Uplink power controls	en
dc.subject.other	Utility-based resource allocation	en
dc.subject.other	Wireless networks	en
dc.title	Utility-based uplink power control in CDMA wireless networks with real-time services	en
heal.type	conferenceItem	en
heal.identifier.primary	10.1007/978-3-540-85209-4_24	en
heal.identifier.secondary	http://dx.doi.org/10.1007/978-3-540-85209-4_24	en
heal.publicationDate	2008	en
heal.abstract	In this paper we address the problem of efficient power allocation in the uplink of CDMA wireless networks, emphasizing on the support of real-time services' QoS prerequisites. The corresponding problem is formulated as a non-cooperative game where users aim selfishly at maximizing their utility-based performance under the imposed physical limitations. A user's utility reflects its degree of satisfaction with respect to its actual throughput performance, QoS requirements fulfillment, and the corresponding power consumption. The existence and uniqueness of a Nash equilibrium point of the proposed Uplink Power Control (UPC) game is proven, where all users have attained a targeted SINR value or transmit with their maximum power, leading essentially to an SINR-balanced network. The properties of equilibrium in a pure optimization theoretical framework are studied, and the tradeoffs between users' overall throughput performance and real-time services strict QoS requirements in channel aware resource allocation processes are revealed and quantified. Finally, a distributed iterative algorithm for computing UPC game's equilibrium is proposed and its efficiency is illustrated via simulation and analysis. © 2008 Springer-Verlag Berlin Heidelberg.	en
heal.journalName	Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)	en
dc.identifier.doi	10.1007/978-3-540-85209-4_24	en
dc.identifier.volume	5198 LNCS	en
dc.identifier.spage	307	en
dc.identifier.epage	320	en