Title: Prioritization-based Layered Multicast for Fixed/Mobile Networks with Fast Convergence and Inter-Session Fairness
Authors: Kenichi Kashibuchi, Tarik Taleb, Abbas Jamalipour, Yoshiaki Nemoto, Nei Kato
Abstracts: Multimedia streaming service is getting an increasing popularity in both wired and wireless networks. Layered multicast is an effective method in streaming multimedia data to a large number of receivers. However, the conventional layered multicast approach converges slowly due to the optimal rate and may not be able to achieve fairness when the session shares a bottleneck link with other users. In this paper, we propose a scheme that allows a new session to converge fast to the appropriate rate relevant to the network condition, while keeping the fairness criterion for the existing sessions. This scheme is based on the fact that the layered multicast uses the priority packet dropping. The proposed scheme provides a better quality of service (QoS) to multimedia streaming traffic. Performance of the proposed scheme is evaluated by simulation and compared with the conventional methods. The results show that the proposed scheme achieves appropriate bandwidth utilization from the beginning of the session. It is also shown that the proposed scheme is effective in handover in mobile networks, thus achieving better QoS in heterogeneous mobile environment.