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Proceedings Paper

Fixed-rate layered multicast congestion control
Author(s): Bing Zhang; Bing Yuan; Zengji Liu
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Paper Abstract

A new fixed-rate layered multicast congestion control algorithm called FLMCC is proposed. The sender of a multicast session transmits data packets at a fixed rate on each layer, while receivers each obtain different throughput by cumulatively subscribing to deferent number of layers based on their expected rates. In order to provide TCP-friendliness and estimate the expected rate accurately, a window-based mechanism implemented at receivers is presented. To achieve this, each receiver maintains a congestion window, adjusts it based on the GAIMD algorithm, and from the congestion window an expected rate is calculated. To measure RTT, a new method is presented which combines an accurate measurement with a rough estimation. A feedback suppression based on a random timer mechanism is given to avoid feedback implosion in the accurate measurement. The protocol is simple in its implementation. Simulations indicate that FLMCC shows good TCP-friendliness, responsiveness as well as intra-protocol fairness, and provides high link utilization.

Paper Details

Date Published: 2 October 2006
PDF: 11 pages
Proc. SPIE 6387, Next-Generation Communication and Sensor Networks 2006, 63870N (2 October 2006); doi: 10.1117/12.686626
Show Author Affiliations
Bing Zhang, Xidian Univ. (China)
Bing Yuan, Xidian Univ. (China)
Zengji Liu, Xidian Univ. (China)


Published in SPIE Proceedings Vol. 6387:
Next-Generation Communication and Sensor Networks 2006
Mohammed Atiquzzaman; Sergey I. Balandin, Editor(s)

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