A Parity-Based Opportunistic Multicast Scheduling Scheme over Cellular Networks

Abstract

In this paper, the fairness problem of opportunistic multicast scheduling (OMS) is investigated and a parity-based OMS is proposed. In conventional multicast system, the system throughput is limited by the users with poor channel state information (CSI). In the proposed OMS, to improve the system throughput performance, the data reception of each user is taken into consideration by the base station (BS). Each user is assigned two aspects of priority, one of them is based on the system throughput, and the other is based on the data reception of users. For the users with poor channel condition, fewer packets would be received than the users with fine channel conditions. Thus, by raising the priority level of the user with worse channel condition, the performance of fairness among users can be improvement. Simulation results show that the proposed OMS can improve the system throughput performance while ensuring the fairness performance among users.