Coded cooperation in OFDMA systems

Jun Niu, I. Tai Lu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A novel time-frequency cooperative communication strategy is proposed for coded OFDMA system over quasi-static frequency-selective Rayleigh fading. To take advantage of the frequency dispersion, each user transmits his partner's and his own data on different subcarriers spreading over the entire available bandwidth. The allocation of subcarriers to each user and his partners can be either pre-specified or dynamically determined. Compared to other cooperative strategies using the time division orthogonal channel allocation, this cooperative strategy benefits from the freedom of subcarrier allocation and the "created" block fading channel during the cooperation process. The performance characteristic is developed in terms of pairwise error probability (PEP) and frame error probability to illustrate the improved diversity gain for various cooperation scenarios. Computer simulation results are provided to verify our theoretical analysis.

Original languageEnglish (US)
Title of host publication2006 IEEE Conference on Information Sciences and Systems, CISS 2006 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages300-305
Number of pages6
ISBN (Print)1424403502, 9781424403509
DOIs
StatePublished - 2006
Event2006 40th Annual Conference on Information Sciences and Systems, CISS 2006 - Princeton, NJ, United States
Duration: Mar 22 2006Mar 24 2006

Publication series

Name2006 IEEE Conference on Information Sciences and Systems, CISS 2006 - Proceedings

Other

Other2006 40th Annual Conference on Information Sciences and Systems, CISS 2006
CountryUnited States
CityPrinceton, NJ
Period3/22/063/24/06

Keywords

  • Cooperative diversity
  • OFDMA
  • Pairwise error probability
  • Quasistatic frequency selective fading channel

ASJC Scopus subject areas

  • Computer Science(all)

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