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Reports (Research Report) Year : 2006

Improvement of Multimedia Streaming using Estimation of Wireless losses

Kamal Deep Singh
Laurent Toutain
César Viho

Abstract

Many networked applications use end-to-end congestion control protocols to avoid the occurrence of congestion collapse phenomena. However, such transport protocols may suffer from link underutilization when there are wireless links along the path: the inability to distinguish wireless losses from congestion losses often results in unnecessary throughput decreases. Since networks are becoming increasingly heterogeneous, consisting of a mix of wired and wireless links, it is important to have some means of correctly identifying the cause of a packet loss, so as to adapt the response of the transport protocol. In this paper, we present an end-to-end solution to this problem and propose a novel method for Wireless Loss Estimation in IP DiffServ networks (WLED). WLED aims at enhancing the performance of equation-based rate control protocols for multimedia applications, by means of directly estimating the wireless and congestion loss rates. We discuss the integration of WLED with a recent, equation-based rate control protocol and we evaluate WLED's performance through simulation. Our results illustrate a new benefit of using DiffServ-like mechanisms for multimedia streaming in wireless networks.
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Dates and versions

inria-00070156 , version 1 (19-05-2006)

Identifiers

  • HAL Id : inria-00070156 , version 1

Cite

Kamal Deep Singh, David Ros, Laurent Toutain, César Viho. Improvement of Multimedia Streaming using Estimation of Wireless losses. [Research Report] RR-5870, INRIA. 2006, pp.18. ⟨inria-00070156⟩
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