On the beamforming design for MIMO multipair two-way relay channels

Hyunjo Chung, Namyoon Lee, Byonghyo Shim, Taewon Oh

Research output: Contribution to journalArticlepeer-review

19 Citations (Scopus)


In this paper, we propose a simple yet effective beamforming technique for multiple-input-multiple-output (MIMO) multipair two-way relay channels. Two key ingredients in our technique are adoption of signal space alignment (SSA) for transmit and receive beamforming and amplify-and-forward (AF) relay beamforming using advanced zero-forcing (ZF) technique. From the sum-rate analysis on MIMO multipair two-way relay channels, we show that the proposed method achieves multiplexing gain proportional to the number of user pairs.

Original languageEnglish
Article number6213571
Pages (from-to)3301-3306
Number of pages6
JournalIEEE Transactions on Vehicular Technology
Issue number7
Publication statusPublished - 2012


  • Relay beamforming
  • signal space alignment (SSA)
  • sum-rate maximization
  • two-way relay channels

ASJC Scopus subject areas

  • Automotive Engineering
  • Aerospace Engineering
  • Electrical and Electronic Engineering
  • Applied Mathematics


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