On The Performance of Non-Orthogonal Multiple Access Considering Random Waypoint Mobility Model

Abstract

Non-Orthogonal Multiple Access (NOMA) has been widely considered as an efficient multiple access scheme for future wireless networks. This is due to the promising performance of NOMA in terms of the larger number of served users and better error performance as compared to traditional multiple access schemes. Therefore, NOMA has received significant research efforts in analyzing its performance under different scenarios and assumptions. In this paper, we analyze the performance of a downlink NOMA scheme considering mobile users, in order to characterize the impact of mobility on the system performance. Specifically, the average bit error rate at mobile users is derived in a closed form expression. The users' mobility is considered to follow the well-known random waypoint mobility model. Mathematical formulas have been verified using Monte Carlo simulations and compared to different scenarios.