Dynamic versus Static Traffic Policing: A New Approach for Videoconference Traffic over Wireless Cellular Networks
Issue No. 09 - September (2009 vol. 8)
DOI Bookmark: http://doi.ieeecomputersociety.org/10.1109/TMC.2009.18
Polychronis Koutsakis , Technical University of Crete, Chania
The subject of traffic policing for computer communication networks has been studied extensively in the literature. However, the constant development of new multimedia applications which are “greedy” in terms of bandwidth and Quality of Service requirements calls for new approaches to the traffic policing problem. In this work, we introduce a new video model for single H.263 videoconference sources and we use it in order to propose a new traffic policing approach for wireless videoconference traffic. We study well-known traffic policing mechanisms which still present interesting, unsolved problems when servicing video traffic and propose, to the best of our knowledge, for the first time in the relevant literature that the token generator is based on a traffic model and not on a fixed rate. The proposed approach shows significant improvement in the results obtained by all the traffic policing mechanisms, and hence, shows that dynamic traffic policing can provide much higher efficiency than the widely used static approach.
Traffic policing, token bucket, traffic modeling, wireless videoconference, H.263 video encoding.
P. Koutsakis, "Dynamic versus Static Traffic Policing: A New Approach for Videoconference Traffic over Wireless Cellular Networks," in IEEE Transactions on Mobile Computing, vol. 8, no. , pp. 1153-1166, 2009.