Optimal video stream multiplexing in MBSFN

Enhanced Multimedia Broadcast/Multicast Service (EMBMS) is a new function defined in 3GPP specification, which supports download delivery and streaming delivery to group users in LTE mobile networks. In 3GPP Release 8 specification, the EMBMS transmission is classified into single-cell transmission and MBSFN (Multicast Broadcast Single Frequency Network transmission). In MBSFN, the statistical multiplexing is used to improve the resource efficiency. By multiplexing parallel streams onto a shared resource, a considerable multiplexing gain can be obtained. An important aspect of statistical multiplexing management is to allocate suitable resource to those multiplexed service (service bundle). In this paper, semi-markov process is used to model the video traffic and the optimal radio resource allocation scheme is proposed based on the existed queue system conclusion.