Outage Probability Performance Using Space Projection Algorithm in FD-MIMO Relay

Abstract

This paper investigates the performance of Full-Duplex (FD) Multiple-Input Multiple-Output (MIMO) relays in an indoor wireless communication system. The FD-MIMO system use Amplify-and-Forward (AF) approach to reduce interferences around relay and increase throughput capacity between both ends of the link. At the relay level, a major issue is to minimize the self-interference (SI) generated by a simultaneous receiving and transmitting of the same signal. To address SI interferences, we proposed a space projection algorithm (SPA) involving Null-space projection (NSP) and subspace projection (SP) algorithms. The simulation results reveal that the proposed SPA minimized the loop interferences and boosted up the link capacity.