Dynamic Resource Allocation in OFDM Systems: An Overview of Cross-Layer Optimization Principles and Techniques
2007 (English)In: IEEE Network, ISSN 0890-8044, Vol. 21, no 1, 53-59 p.Article in journal (Refereed) Published
Recently, a lot of research effort has been spent on cross-layer system design. It has been shown that cross-layer mechanisms (i.e., policies) potentially provide significant performance gains for various systems. In this article we review several aspects of cross-layer system optimization regarding wireless OFDM systems. We discuss basic optimization models and present selected heuristic approaches realizing cross-layer policies by means of dynamic resource allocation. Two specific areas are treated separately: models and dynamic approaches for single transmitter/receiver pairs (i.e., a point-to-point communication scenario) as well as models and approaches for point-to-multipoint communication scenarios (e.g., the downlink of a wireless cell). This article provides basic knowledge in order to investigate future OFDM cross-layer-optimization issues.
Place, publisher, year, edition, pages
IEEE Communications Society, 2007. Vol. 21, no 1, 53-59 p.
IdentifiersURN: urn:nbn:se:kth:diva-134858DOI: 10.1109/MNET.2007.314539ISI: 000243891600010ScopusID: 2-s2.0-33947589260OAI: oai:DiVA.org:kth-134858DiVA: diva2:668457
QC 201312022013-11-292013-11-292014-01-20Bibliographically approved