Multicast scheduling in time-varying wireless networks with delay constraints

Abstract

Mobile and wireless communication has been evolved from the basic model for providing point-to-point voice centric services into more complicated service provision technologies with point-to-multipoint transmission mode, such as MBMS in 3GPP and BCMCS in 3GPP2. However, the group member with the worst channel condition becomes the bottleneck since the base station or access point is supposed to take care of all the users in a multicast group whose members would like to receive a same service. On the other hand, delay is one of the most important QoS criteria along with throughput especially for realtime services such as mobile TV and IP conference. In this paper, we propose a framework for performance analysis of multicast service with delay constraints. Additionally, an admission control policy for real-time multicast scheduling is demonstrated.