Bit and power allocation for OFDM systems in interference channels with MVDR beamforming

Liang Ying Chen, Yung Fang Chen

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

Abstract

This paper develops a distributed bit and power allocation algorithm with beamforming in an iterative fashion for multi-cell orthogonal frequency division multiplexing (OFDM) systems on uplink. The model of the multi-cell channel with frequency reuse is considered. The transmit signal from each mobile causes interference to the received signals of other base stations. The scheme aims to minimize the total mobile transmit power while satisfying the required data rate and bit error rate (BER) of each mobile. The proposed scheme offers better performance than the fixed bit allocation and tremendously reduces computational complexity compared to the multi-user greedy method with insignificant performance degradation.

Original languageEnglish
Title of host publicationProceedings of the 4th IASTED Asian Conference on Communication Systems and Networks, AsiaCSN 2007
Pages55-60
Number of pages6
StatePublished - 2007
Event4th IASTED Asian Conference on Communication Systems and Networks, AsiaCSN 2007 - Phuket, Thailand
Duration: 2 Aug 20074 Aug 2007

Publication series

NameProceedings of the 4th IASTED Asian Conference on Communication Systems and Networks, AsiaCSN 2007

Conference

Conference4th IASTED Asian Conference on Communication Systems and Networks, AsiaCSN 2007
Country/TerritoryThailand
CityPhuket
Period2/08/074/08/07

Keywords

  • Beamforming
  • Co-channel interference
  • OFDM
  • Resource allocation

Fingerprint

Dive into the research topics of 'Bit and power allocation for OFDM systems in interference channels with MVDR beamforming'. Together they form a unique fingerprint.

Cite this