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Efficient DE-Jitter Control for Voice Applications over Wireless Ad Hoc Networks

Mouna Benaissa 1 Vincent Lecuire 1 Francis Lepage 1 André Schaff 2
2 MADYNES - Management of dynamic networks and services
INRIA Lorraine, LORIA - Laboratoire Lorrain de Recherche en Informatique et ses Applications
Abstract : Voice over IP applications require a playout buffer at the receiver side to smooth network delay variations. Unfortunately, existing algorithms for dynamic playout adjustment designed for wireline networks do not operate correctly in wireless ad hoc networks. These algorithms estimate the ned-to-end delay on the set of previous received audio packets. Indeed, such a delay estimation based on past history in not appropriate due to mobility which leads to random changes of the network topology. In this paper, we highlight this estimation problem. We show that "route request" AODV control messages provide more accurate delay estimation . Then, we propose a new algorithm for playout delay adjustment based on these control messages. The performance evaluation is performed by simulation using ns-2. We show that this algorithm outperforms existing playout delay adjustment algorithms. Performance criteria are loss late percentage (reliability criterion), averaged playout delay (interactivity criterion) and playout delay variation (stability criterion).
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https://hal.inria.fr/inria-00000041
Contributor : André Schaff <>
Submitted on : Saturday, May 21, 2005 - 11:05:59 AM
Last modification on : Friday, February 26, 2021 - 3:28:04 PM

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  • HAL Id : inria-00000041, version 1

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Mouna Benaissa, Vincent Lecuire, Francis Lepage, André Schaff. Efficient DE-Jitter Control for Voice Applications over Wireless Ad Hoc Networks. Telecommunication Systems, Springer Verlag (Germany), 2005, modeling, analysis, design and management, 28 (2), pp.211-230. ⟨inria-00000041⟩

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