Diversity through coded cooperation

  • Authors:
  • T. E. Hunter;A. Nosratinia

  • Affiliations:
  • Nortel Networks, Richardson, TX, USA;-

  • Venue:
  • IEEE Transactions on Wireless Communications
  • Year:
  • 2006

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Abstract

Motivated by the recent works on the relay channel and cooperative diversity, this letter introduces coded cooperation, where cooperation is achieved through channel coding methods instead of a direct relay or repetition. Each codeword is partitioned into two subsets that are transmitted from the user's and partner's antennas, respectively. Coded cooperation achieves impressive gains compared to a non-cooperative system while maintaining the same information rate, transmit power, and bandwidth. We develop bounds on BER and FER and illustrate the advantage of coded cooperation under a number of different scenarios.