3G wireless video with full interactive multicast services

This paper presents an efficient method for supporting 3G wireless video with full interactive multicast services. The proposed method is based on storing multiple differently encoded versions of the video stream at the server. The corresponding video streams are obtained by encoding the original uncompressed video file as a sequence of I-P(I) frames for normal playback and I-P(M) for interactive mode. Mechanisms for controlling the multicast full interactive service request and the normal streams are also presented and their effectiveness is assessed through extensive simulations. Wireless full interactive multicast video services are supported with considerably reduced additional delay and acceptable visual quality at the wireless client -end.