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Amélioration de la performance des réseaux maillés sans fil cognitifs
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TLDR
In this paper, a projet de recherche et al. propose a solution peu couteuse and efficace for deploying services d'acces a large bande dans des environnements depourvus d'infrastructure.Abstract:
Les reseaux mailles sans fil (WMN) sont une solution peu couteuse et efficace afin de deployer rapidement des services d’acces a large bande dans des environnements depourvus d’infrastructure. Toutefois, pour devenir un succes commercial, les WMN doivent supporter des applications en temps reel, telles que celles pour le multimedia et les services d’urgence. Or, ces applications generent du trafic critique qui requiert la mise en place de mecanismes de qualite de service (QoS). Alors que la capacite et la disponibilite de la bande passante des WMN monoradios limitent severement la QoS pour ce type de trafic, les WMN cognitifs (CWMN) multiradios peuvent compenser ces limitations et offrir de meilleurs mecanismes de QoS. Ce projet de recherche propose d’ameliorer la performance des WMN afin qu’ils puissent supporter la QoS requise pour satisfaire aux exigences strictes du trafic genere par des applications en temps reel.read more
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Book ChapterDOI
Organization for Economic Cooperation and Development (OECD)
TL;DR: In this paper, a revision of the previous edition article by Robert Visser, volume 4, pp 551-560, is presented. But this article is based on the previous version of the article.
References
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Topology control of multihop wireless networks using transmit power adjustment
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Architecture and algorithms for an IEEE 802.11-based multi-channel wireless mesh network
Ashish Raniwala,Tzi-cker Chiueh +1 more
TL;DR: It is shown that intelligent channel assignment is critical to Hyacinth's performance, and distributed algorithms that utilize only local traffic load information to dynamically assign channels and to route packets are presented, and their performance is compared against a centralized algorithm that performs the same functions.
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Centralized channel assignment and routing algorithms for multi-channel wireless mesh networks
TL;DR: A detailed performance evaluation shows that with intelligent channel and bandwidth assignment, equipping every wireless mesh network node with just 2 NICs operating on different channels can increase the total network goodput by a factor of up to 8 compared with the conventional single-channel ad hoc network architecture.