BER Performance of Full-Duplex Two-Way Relay System with User Mobility

Abstract

This paper investigates the error performance of a full-duplex two-way communication system with a decode-and-forward relay. All the nodes are assumed to be mobile, and the effect of mobility is incorporated using the auto regressive model AR1. The residual self-interference (RSI), that exists between transmit and receive antennas of the nodes, is characterized as a Rician distributed random variable. The closed-form expression for average bit error rate is obtained and it was observed that mobility of relay affects the system performance more severely as compared to the mobility of users. The analysis presented is verified through Monte-Carlo simulations.