Sum capacity, rate distribution and scenarios for multiuser diversity in MIMO-OFDMA

Gerhard Bauch, Christian Guthy, Josef A. Nossek, Pedro Tejera, Wolfgang Utschick

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

We consider an innovative downlink multiuser MIMO scheme. Several users compete for the available resources in time, frequency and space. The proposed scheme exploits multiuser diversity and uses interference cancellation at the transmitter. We evaluate it for indoor, hot spot and multihop scenarios. Significant gains in terms of sum capacity can be achieved even under line of sight conditions. The theoretical limit can be approximately achieved in most scenarios. A nice feature of the proposed scheme is that it inherently provides some fairness regarding rate distribution among users even though fairness is not explicitly taken into account by the scheduler.

Original languageEnglish
Title of host publicationIWCMC 2007
Subtitle of host publicationProceedings of the 2007 International Wireless Communications and Mobile Computing Conference
Pages7-12
Number of pages6
DOIs
StatePublished - 2007
EventIWCMC 2007: 2007 International Wireless Communications and Mobile Computing Conference - Honolulu, HI, United States
Duration: 12 Aug 200716 Aug 2007

Publication series

NameIWCMC 2007: Proceedings of the 2007 International Wireless Communications and Mobile Computing Conference

Conference

ConferenceIWCMC 2007: 2007 International Wireless Communications and Mobile Computing Conference
Country/TerritoryUnited States
CityHonolulu, HI
Period12/08/0716/08/07

Keywords

  • MIMO
  • Multiuser diversity
  • OFDMA

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