Energy efficient bidirectional massive MIMO relay beamforming

Michal Yemini*, Alessio Zappone, Eduard Jorswieck, Amir Leshem

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

8 Scopus citations


In this paper, we investigate the global energy efficiency ofabidirectional amplify-and-forward relay MIMO system. It is assumed that the relay serves two end-users, each requiring a minimum target rate. Two algorithms are proposed, a suboptimal one with lower complexity, and an optimal one with slightly higher complexity. We present numerical results that compare the two algorithms and exhibit several optimality properties concerning the global energy efficiency function.

Original languageAmerican English
Article number7926329
Pages (from-to)1010-1014
Number of pages5
JournalIEEE Signal Processing Letters
Issue number7
StatePublished - Jul 2017
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2017 IEEE.


  • Beamforming
  • Energy efficiency
  • Interference
  • Massive MIMO
  • Relay networks


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