Optimized Protocols and Software for High-Performance Networks

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GdT le 19/10/12 à 14h - Nguyen Van Nam

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Van Nam nous présentera le vendredi 19 octobre à 14h en salle B1 (4ème étage) une partie de ses travaux de thèse . 
Titre et résumé ci -dessous. 

Le titre: Characterization of Idle Period Durations in IEEE 802.11-based Multihop Wireless Networks

Résumé: Multihop wireless networks are used to provide internet connectivity to the users and the level of performance and quality expected by these users are increasing.

In order to meet these performance and quality requirements, wireless communications should be enhanced. Previous works from the literature show that the performance

and quality provided by an IEEE 802.11-based multihop wireless network are far from optimal and that there exist different ways to increase the efficiency and the quality

of service of such a network. Some studies show that using the medium state as a parameter to tune the behaviour of an IEEE 802.11-based multihop network is

an appropriate way to proceed. A station in a IEEE 802.11-based multihop wireless network senses the medium either busy or idle. The durations of idle periods and

busy periods and their distributions have a clear impact on the network and nodes performance. The understanding of the relationship between these indicators,

namely idle and busy periods, the network topology and the traffic, would give new insights to enhance the performance and quality of multihop wireless networks.

Due to its multihop and distributed nature, the characterisation of idle period durations is difficult in such a network. This paper explores the characterisation of idle

period distribution by proposing a new analytical model and provides an application of this characterisation with the design of an adaptive backoff algorithm based

on idle periods.

Last Updated on Thursday, 13 September 2012 08:18