Joint Source-Relay Optimization for Two-Path MIMO AF Relay System

Author

Wei Chen ; Zhi Chen ; Chao Zhou

Author_Institution

Nat. Key Lab. of Sci. & Technol. on Commun., Univ. of Electron. Sci. & Technol. of China, Chengdu, China

fYear

2012

fDate

21-23 Sept. 2012

Firstpage

1

Lastpage

5

Abstract

In this paper, we consider the inter-relay interference (IRI) problem in a two-path successive amplify-and-forward (AF) multi-input multi-output (MIMO) relay system. First, a new interference cancellation algorithm employed at the relays is proposed to fully remove the IRI with an arbitrary number of antennas. Second, the transmit beamforming matrix at the source, relays and destination are jointly designed to maximize the capacity under the power constraint. Third, we analyze the relation among duplex-gain, diversity-gain, and the multiplex-gain in the different antennas number and SNR, respectively. Finally, Monte Carlo simulations are also given to verify the good performance of the proposed algorithm.

Keywords

MIMO communication; Monte Carlo methods; amplify and forward communication; array signal processing; interference suppression; matrix algebra; relay networks (telecommunication); IRI problem; Monte Carlo simulations; SNR; diversity-gain; duplex-gain; interference cancellation algorithm; interrelay interference problem; joint source-relay optimization; multiplex-gain; power constraint; transmit beamforming matrix; two-path MIMO AF relay system; two-path successive amplify-and-forward multiinput multioutput relay system; Antennas; Array signal processing; High definition video; MIMO; Relays; Signal to noise ratio; Silicon;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Communications, Networking and Mobile Computing (WiCOM), 2012 8th International Conference on

Conference_Location

Shanghai

ISSN

2161-9646

Print_ISBN

978-1-61284-684-2

Type

conf

DOI

10.1109/WiCOM.2012.6478558

Filename

6478558