Analysis of the Energy Efficiency and Packet Error Rate in Amplify-and-Forward MIMO Relay Networks
Manar Al Kali, Li Chen Yu, Ali Abdulwahhab Mohammed · Networking, Architecture and Storages · 2014
In this paper, we focus on the energy efficiency issues in cooperative multiple-input multiple-output (MIMO) relay networks. We employ an amplify-and-forward (AF) relay scheme, where a static multiple antennas relay station cooperatively forwards the relaying packets to the destination. Under the assumption of Rayleigh fading channels and time division multiplexing (TDM), we analyze the effect of average received signal-to-noise ratio (SNR) on energy efficiency. We derive the new exact closed form expressions for the packet error rate and energy efficiency in terms of SNR and Q antennas. Subsequently, we validate our analysis by performing Monte Carlo methods. The simulation results demonstrate that the proposed scheme achieves a significantly higher efficiency performance, when compared with the existing relay schemes.