A novel congestion control mechanism on tfrc for streaming applications over wired-wireless networks

Authors:
Yu-Chen Huang;Ching-Hsiang Chu;Eric Hsiao-Kuang Wu
Affiliations:
National Central University, Chung-Li, Taiwan Roc;National Central University, Chung-Li, Taiwan Roc;National Central University, Chung-Li, Taiwan Roc
Venue:
Proceedings of the 6th ACM workshop on Wireless multimedia networking and computing
Year:
2011

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Abstract

TCP-Friendly Rate Control (TFRC) has been widely adopted for advanced streaming applications over wired-wireless networks. TFRC applies an equation-based rate control scheme to provide smooth sending rate and perceptual quality in streaming applications. However, TFRC tends to malfunction in wireless environment if packet lost event was introduced by poor channel quality but network congestion. Therefore, TFRC cannot provide high quality-of-service for streaming applications over wired-wireless networks. In this paper, we proposed a novel one-way delay jitter based TFRC with end-to-end semantic over wired-wireless networks. This scheme not only provide smooth sending rate and TCP-friendly characteristics like standard TFRC, but also considerable increase the throughput by accurately estimating the available bandwidth in wired-wireless networks with bursty nature of background traffic. Simulation results show that our scheme conducts performance improvement without intrusiveness issue and even if background traffic is bursty over wired-wireless networks.