Performance analysis of multi-relays AF cooperative communication system based on directional antenna
Jin-Fu Lin · Systems engineering and electronics · 2013
Directional antenna based multi-relays amplify-and-forward(AF) cooperative communication technology is studied.Firstly,the channel capacity and outage probability of three modes,which include without beamforming transmit-receive(N-BF),beamforming transmit-without beamforming receive(T-BF) and beamforming transmit-beamforming receive(TR-BF),are theoretically derived.Secondly,the channel capacity and outage probability of different modes are respectively analyzed in detail combined with the specific numerical simulation.Finally,simulation shows that the TR-BF has the best optimal performance,the TR-BF and T-BF are less affected by noise than N-BF.