Research Article
SER analysis of amplify-and-forward relay systems with beamforming
@INPROCEEDINGS{10.1109/ChinaCom.2011.6158211, author={Min Lin and Min Li and Lin Yang and Chun-Guo Chang}, title={SER analysis of amplify-and-forward relay systems with beamforming}, proceedings={6th International ICST Conference on Communications and Networking in China}, publisher={IEEE}, proceedings_a={CHINACOM}, year={2012}, month={3}, keywords={AF relay network MIMO SER beamforming}, doi={10.1109/ChinaCom.2011.6158211} }- Min Lin
Min Li
Lin Yang
Chun-Guo Chang
Year: 2012
SER analysis of amplify-and-forward relay systems with beamforming
CHINACOM
IEEE
DOI: 10.1109/ChinaCom.2011.6158211
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.