SER analysis of amplify-and-forward relay systems with beamforming

Author

Lin, Min ; Li, Min ; Yang, Lin ; Chang, Chun-Guo

Author_Institution

Nanjing Telecommun. Technol. Inst., Nanjing, China

fYear

2011

fDate

17-19 Aug. 2011

Firstpage

532

Lastpage

535

Abstract

In this paper, the SER performance of a dual-hop amplify-and-forward (AF) relay network with beamforming over Rayleigh fading channels is analyzed, where the source, relay and destination are all equipped with multiple antennas. We first derive the optimal beamforming weight vectors to maximize the received SNR at the destination. Then, we present closed-form expressions for the probability density function and moment generating function of the maximum received SNR, based on which, an exact SER expression for the relay system of an M-PSK constellation is developed. Finally, computer simulations show that the theoretical formula is highly consistent with the Monte Carlo experimentation result, and performance improvement is achieved through multi-antennas at the relay.

Keywords

Monte Carlo methods; Rayleigh channels; amplify and forward communication; antenna arrays; array signal processing; phase shift keying; M-PSK constellation; Monte Carlo; Rayleigh fading channels; SER analysis; amplify-and-forward relay systems; computer simulations; moment generating function; multiple antennas; optimal beamforming; probability density function; Antennas; Array signal processing; Fading; Relays; Signal to noise ratio; Vectors; Wireless communication; AF relay network; MIMO; SER; beamforming;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications and Networking in China (CHINACOM), 2011 6th International ICST Conference on

Conference_Location

Harbin

Print_ISBN

978-1-4577-0100-9

Type

conf

DOI

10.1109/ChinaCom.2011.6158211

Filename

6158211