Dynamic subcarrier reuse with rate guaranty in a downlink multicell OFDMA system

Carle Lengoumbi, Philippe Godlewski, Philippe Martins

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

Abstract

In this paper, the downlink of a multi-cell OFDMA system is considered. Rate Adaptive Optimization is investigated with minimum rate requirement and in presence of co-channel interference. A low-complexity subcarrier allocation scheme is proposed. A particular procedure provides limitation of co-channel interference by dynamically adapting the subcarrier reuse factor. A rate requirement violation (RRV) threshold is introduced to decide whether or not the interference limitation procedure is to be used. The performance is evaluated for variant user's rate requirement. The evaluation includes comparison of the cell global rate and the outage probability with existing heuristics.

Original languageEnglish
Title of host publication2006 IEEE 17th International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC
DOIs
Publication statusPublished - 1 Dec 2006
Externally publishedYes
Event2006 IEEE 17th International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC - Helsinki, Finland
Duration: 11 Sept 200614 Sept 2006

Publication series

NameIEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC

Conference

Conference2006 IEEE 17th International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC
Country/TerritoryFinland
CityHelsinki
Period11/09/0614/09/06

Keywords

  • Co-channel interference
  • Frequency reuse factor
  • OFDMA
  • Rate adaptive optimization
  • Subcarrier assignment

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