Joint source and relay design for MIMO multi-relay systems using projected gradient approach

Apriana Toding, Muhammad R. A. Khandaker, Yue Rong

Research output: Contribution to journalArticle

2 Citations (Scopus)
1 Downloads (Pure)

Abstract

In this paper, we develop the optimal source precoding matrix and relay amplifying matrices for non-regenerative multiple-input multiple-output (MIMO) relay communication systems with parallel relay nodes using the projected gradient (PG) approach. We show that the optimal relay amplifying matrices have a beamforming structure. Exploiting the structure of relay matrices, an iterative joint source and relay matrices optimization algorithm is developed to minimize the mean-squared error (MSE) of the signal waveform estimation at the destination using the PG approach. The performance of the proposed algorithm is demonstrated through numerical simulations.

Original languageEnglish
Article number151
JournalEURASIP Journal on Wireless Communications and Networking
Volume2014
DOIs
Publication statusPublished - 15 Sep 2014

Keywords

  • Beamforming
  • MIMO relay
  • Non-regenerative relay
  • Parallel relay network
  • Projected gradient

ASJC Scopus subject areas

  • Signal Processing
  • Computer Science Applications
  • Computer Networks and Communications

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