Statistical Analysis of OFDMA Assignments
2008 (English)In: IEEE International Symposium on Wireless Communication Systems. 2008. ISWCS '08., IEEE conference proceedings, 2008, 16-20 p.Conference paper (Refereed)
In this paper we investigate statistical properties of IP optimal subcarrier assignments in the down-link of an OFDMA cell. Essentially, we show that such subcarrier assignments do have Â¿hiddenÂ¿ statistical properties which can be exploited to design an extremely simple assignment strategy. We investigate such statistical properties and the corresponding performance of the simple assignment rules regarding a specific, well-known, NP-hard assignment problem. Although our approach is Â¿light-weightÂ¿ in complexity, the strategy provides a significant performance gain compared to static assignments. Finally, we investigate our approach also for other optimization problems in the context of multi-user OFDMA assignments.
Place, publisher, year, edition, pages
IEEE conference proceedings, 2008. 16-20 p.
Communication Systems Telecommunications
IdentifiersURN: urn:nbn:se:kth:diva-136795DOI: 10.1109/ISWCS.2008.4726009ISBN: 978-1-4244-2489-4OAI: oai:DiVA.org:kth-136795DiVA: diva2:677195
8th IEEE International Symposium on Wireless Communication Systems 2008 (ISWCS 2008),Reykjavik
QC 201312132013-12-092013-12-092013-12-13Bibliographically approved