Both minimum MSE and maximum SNR channel training designs for MIMO AF multi-relay networks with spatially correlated fading

Jae Mo Kang, Hyung Myung Kim

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

This letter proposes channel training designs for two-hop multi-relay networks, where a source, a destination and multiple amplify-and-forward (AF) relays are all equipped with multi-antenna, based on mean square error (MSE) and signal-to-noise ratio (SNR) criteria with taking into account spatial fading correlation between multiple-input multiple-output (MIMO) channel elements. The minimum MSE and maximum SNR channel estimators are initially derived and, then, optimal structures on source training signal and relay matrices are determined. An iterative and a closed-form power allocation solutions are proposed for both channel estimators. Simulation results show that the proposed schemes outperform the conventional schemes.

Original languageEnglish
Article number7119573
Pages (from-to)1888-1892
Number of pages5
JournalIEEE Signal Processing Letters
Volume22
Issue number11
DOIs
StatePublished - 1 Nov 2015

Keywords

  • Channel estimation
  • MIMO
  • MSE
  • multi-relay network
  • SNR
  • training design

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