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Comparison and Cost Analysis of Smart and Opportunistic MIMO OFDM Schemes
KTH, School of Electrical Engineering (EES), Signal Processing.ORCID iD: 0000-0002-3599-5584
KTH, School of Electrical Engineering (EES), Signal Processing.
KTH, School of Electrical Engineering (EES), Signal Processing.
2006 (English)In: IST Mobile & Wireless Communications Summit 2006, 2006Conference paper, Published paper (Refereed)
Abstract [en]

This paper attempts to compare the system downlinkperformance of a smart antenna scheme for OFDMA thatutilizes channel covariance information with an opportunisticmulti-antenna scheme for OFDMA that uses fast limited feedbackof the instantaneous channel condition. The schemes areevaluated by means of simulations in a low load scenario andalso compared to a simple HSDPA-like scheme. The smartantenna method manages to utilize the multiple antennas betterthan the opportunistic scheme. Furthermore, the performanceof the schemes is inserted into a cost model that assumes thatthe receivers are relays that use short-range technologies tocommunicate with user equipments. Also in terms of cost peruser equipment, the smart antenna scheme proves to be moresuitable for the studied scenario.

Place, publisher, year, edition, pages
2006.
National Category
Telecommunications
Identifiers
URN: urn:nbn:se:kth:diva-46576OAI: oai:DiVA.org:kth-46576DiVA: diva2:453908
Conference
IST Mobile & Wireless Communications Summit 2006
Note
QC 20111104Available from: 2011-11-03 Created: 2011-11-03 Last updated: 2011-11-04Bibliographically approved

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Bengtsson, Mats

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