Seamless multimedia broadcasting over cdma2000 BCMCS networks

Abstract

Recent advances in communication and mobile computing have made it possible for cellular networks and digital broadcasting systems to converge on the basis of their common multimedia applications. We analyze the real-time characteristics of a cdma2000 1xEV-DO broadcast and multicast service (BCMCS) system, and propose a system architecture to provide seamless multimedia services. We found that jitter in the processing time of the Reed-Solomon decoder can lead to a discontinuity in multimedia streaming, and we therefore estimated the Reed-Solomon decoding time on a common mobile platform for a given bit error-rate or fading margin in the channel. Next we evaluated the jitter bound and the best cache size for real-time applications in BCMCS. This analysis allows us to suggest a system architecture based on the Jitter-EDD model to ensure the continuity of real-time services for multimedia applications over a 3G cellular broadcast network, and to provide a better quality of service.