PHY- and MAC-aware resource allocation and packet scheduling for single-cell OFDMA packet networks

Gotsis, AG; Koutsokeras, NTh; Constantinou, Ph

dc.contributor.author	Gotsis, AG	en
dc.contributor.author	Koutsokeras, NTh	en
dc.contributor.author	Constantinou, Ph	en
dc.date.accessioned	2014-03-01T01:29:00Z
dc.date.available	2014-03-01T01:29:00Z
dc.date.issued	2008	en
dc.identifier.issn	17962021	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/19075
dc.subject	Cross-layer	en
dc.subject	Multiuser OFDM	en
dc.subject	OFDMA	en
dc.subject	Packet scheduling	en
dc.subject	Resource allocation	en
dc.subject.other	Adaptive allocations	en
dc.subject.other	Average throughputs	en
dc.subject.other	Channel conditions	en
dc.subject.other	Cross-layer	en
dc.subject.other	Cross-layer designs	en
dc.subject.other	Do-mains	en
dc.subject.other	Efficient resource allocations	en
dc.subject.other	Evolving networks	en
dc.subject.other	Frequency domains	en
dc.subject.other	Key factors	en
dc.subject.other	Monte-carlo simulations	en
dc.subject.other	Multiuser OFDM	en
dc.subject.other	OFDMA	en
dc.subject.other	Osi layers	en
dc.subject.other	Overall systems	en
dc.subject.other	Packet scheduling	en
dc.subject.other	Performance bounds	en
dc.subject.other	Radio resource allocations	en
dc.subject.other	Radio Resource managements	en
dc.subject.other	Rate constraints	en
dc.subject.other	Real times	en
dc.subject.other	Resource distributions	en
dc.subject.other	System levels	en
dc.subject.other	Frequency allocation	en
dc.subject.other	Frequency division multiple access	en
dc.subject.other	Information management	en
dc.subject.other	Management	en
dc.subject.other	Packet networks	en
dc.subject.other	Planning	en
dc.subject.other	Resource allocation	en
dc.subject.other	Theorem proving	en
dc.subject.other	Wireless networks	en
dc.subject.other	Scheduling	en
dc.title	PHY- and MAC-aware resource allocation and packet scheduling for single-cell OFDMA packet networks	en
heal.type	journalArticle	en
heal.identifier.primary	10.4304/jcm.3.4.59-70	en
heal.identifier.secondary	http://dx.doi.org/10.4304/jcm.3.4.59-70	en
heal.publicationDate	2008	en
heal.abstract	Radio resource management mechanisms such as PHY-centric Radio Resource Allocation and MAC-centric Packet Scheduling are expected to play a substantial role in the performance of future OFDMA-based wireless networks. Inevitably, efficient resource allocation strategies have to exploit information laying in different OSI layers, allowing for a cross-layer design. In the literature adaptive allocation schemes have been proposed for optimum or suboptimum resource distribution in the frequency domain under static individual user rate constraints. The contribution of this work is twofold: First, we evaluate current allocation schemes under realistic traffic and channel conditions, in order to acquire the upper performance bounds on a real time evolving network. Then we extend them to incorporate MAC-layer information, as well as opportunistic packet scheduling in the time-domain. The key factors that affect the overall system performance in terms of system average throughput and delay are identified, evaluated and discussed. The presented ideas are accompanied with extensive system level Monte-Carlo simulations. © 2008 Academy Publisher.	en
heal.journalName	Journal of Communications	en
dc.identifier.doi	10.4304/jcm.3.4.59-70	en
dc.identifier.volume	3	en
dc.identifier.issue	4	en
dc.identifier.spage	59	en
dc.identifier.epage	70	en