Maximin SNR Beamforming Strategies for Two-Way Relay Channels

Author

Wang, Wenjin ; Jin, Shi ; Zheng, Fu-Chun

Author_Institution

Sch. of Syst. Eng., Univ. of Reading, Reading, UK

Volume

16

Issue

7

fYear

2012

fDate

7/1/2012 12:00:00 AM

Firstpage

1006

Lastpage

1009

Abstract

In this letter, we consider beamforming strategies in amplified-and-forward (AF) two-way relay channels, where two terminals and the relay are equipped with multiple antennas. Our aim is to optimize the worse end-to-end signal-to-noise ratio of the two links so that the reliability of both terminals can be guaranteed. We show that the optimization problem can be recast as a generalized fractional programming and be solved by using the Dinkelbach-type procedure combined with semidefinite programming. Simulation results confirm the efficiency of the proposed strategies.

Keywords

MIMO communication; amplify and forward communication; array signal processing; cooperative communication; mathematical programming; telecommunication network reliability; wireless channels; Dinkelbach-type procedure; MIMO relaying systems; amplified-and-forward two-way relay channels; cooperative communications; end-to-end signal-to-noise ratio optimization; generalized fractional programming; maximin SNR beamforming strategies; semidefinite programming; terminal reliability; Array signal processing; Bit error rate; MIMO; Programming; Relays; Reliability; Signal to noise ratio; MIMO; Two-way relay channels; beamforming; generalized fractional program;

fLanguage

English

Journal_Title

Communications Letters, IEEE

Publisher

ieee

ISSN

1089-7798

Type

jour

DOI

10.1109/LCOMM.2012.042512.120145

Filename

6205420