MPEG-4 video transcoder for mobile multimedia traffic planning

Traffic planning for multimedia has become more and more significant as new network infrastructures with different characteristics have been introduced lately. The increasing popularity of mobile communications has also drawn much of the attention from the research point of view. Thus, this paper addresses the problem of traffic planning, initiated by this interest, for mobile video communications and proposes a video transcoder bank to resolve congestion and/or bandwidth limitation. The proposed architecture presents a layered structure of multiple video rates as required by various networks. Moreover, the paper also introduces an adaptive method for resolving congestion. The designed system monitors the congestion with a feedback loop within a network and adaptively produces necessary transmission rates whilst providing the best available service quality.