Congestion control scheme for reliable multicast improving intrasession fairness with network support

Miki Yamamoto; Makoto Yamaguchi

doi:10.1117/12.473011

1 July 2002 Congestion control scheme for reliable multicast improving intrasession fairness with network support

Miki Yamamoto, Makoto Yamaguchi

Proceedings Volume 4866, Quality of Service over Next-Generation Internet; (2002) https://doi.org/10.1117/12.473011
Event: ITCom 2002: The Convergence of Information Technologies and Communications, 2002, Boston, MA, United States

Abstract

In reliable multicast communications, data packets are disseminated to all receivers in a multicast group. Generally, end-to-end congestion control adjusts transmission rate of the sender to the node of the lowest throughput in a multicast group. In this situation, when a multicast group includes receivers of significantly low throughput, lots of receivers suffer throughput degradation due to existence of low throughput nodes. This technical problem, called intra-session fairness, is special problem for multicast communications which include lots of receivers whose receiving capability is different in general. This paper proposes a new congestion control scheme for reliable multicast which improves intra-session fairness. A proposed scheme makes use of network support technology to enable a server in a network which includes low throughput receiver beneath it to behave as a pseudo receiver. A server stores arrived data packets and transmits them to receivers beneath it with adjusting transmission rate to the lowest throughput one. A server can hide existence of low throughput nodes to the sender, which enables improvement of intra-session fairness. Simulation results show that our proposed congestion control scheme improve intra-session fairness with increase of servers. We also show strategic arrangement of servers brings better improvement of intra-session fairness with small number of servers.

Citation Download Citation

Miki Yamamoto and Makoto Yamaguchi "Congestion control scheme for reliable multicast improving intrasession fairness with network support", Proc. SPIE 4866, Quality of Service over Next-Generation Internet, (1 July 2002); https://doi.org/10.1117/12.473011

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