Effects of Multiple Antennas on Outage Performance of Decode-and-Forward Cooperative Networks with Relay Selection

In this paper, we consider multiple source and destination antennas based on relay selection scheme to improve the end-to-end outage performance for decode-and-forward cooperative networks. We derive an exact closed-form expression of the outage probability for the proposed system over a Rayleigh fading channel and describe the diversity-multiplexing tradeoff of the system. We then analyze the effects of the number of source and destination antennas on the outage probabilities and diversity-multiplexing tradeoffs.This research was supported by NSL program through the National Research Foundation of Korea, funded by the Ministry of Education, Science and Technology (2011-0018664)