MIMO cooperative communication network design with relay selection and CSI feedback

Van Canh Tran, Minh Tuan Le, Xuan Nam Tran*, Trung Q. Duong

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)

Abstract

In this paper, we investigate an amplify-and-forward (AF) multiple-input multiple-output - spatial division multiplexing (MIMO-SDM) cooperative wireless networks, where each network node is equipped with multiple antennas. In order to deal with the problems of signal combining at the destination and cooperative relay selection, we propose an improved minimum mean square error (MMSE) signal combining scheme for signal recovery at the destination. Additionally, we propose two distributed relay selection algorithms based on the minimum mean squared error (MSE) of the signal estimation for the cases where channel state information (CSI) from the source to the destination is available and unavailable at the candidate nodes. Simulation results demonstrate that the proposed combiner together with the proposed relay selection algorithms achieve higher diversity gain than previous approaches in both flat and frequency-selective fading channels.

Original languageEnglish
Pages (from-to)1018-1024
Number of pages7
JournalAEU - International Journal of Electronics and Communications
Volume69
Issue number7
Early online date16 Apr 2015
DOIs
Publication statusPublished - Jul 2015

Keywords

  • Cooperative communication
  • Linear combining
  • MIMO
  • MMSE
  • Relay selection

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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