Channel assignment protocols for multi-radio multi-channel wireless mesh netwworks
Visualitza/Obre
10.5821/dissertation-2117-94740
Inclou dades d'ús des de 2022
Cita com:
hdl:2117/94740
Càtedra / Departament / Institut
Universitat Politècnica de Catalunya. Departament d'Arquitectura de Computadors
Tipus de documentTesi
Data de defensa2013-01-30
EditorUniversitat Politècnica de Catalunya
Condicions d'accésAccés obert
Llevat que s'hi indiqui el contrari, els
continguts d'aquesta obra estan subjectes a la llicència de Creative Commons
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Reconeixement-NoComercial 3.0 Espanya
Abstract
The increasing demand for large and low cost wireless coverage, ranging from campus to city wide areas, has motivated a high interest in multi-hop communications with Wireless Mesh Networks (WMN) based on IEEE 802.11s as the
most recent and significant standard.
Channel Assignment (CA) is mechanism which selects the best channels for an individual wireless node or the entire network aiming to increase the capacity of the network. Channel assignment has been extensively researched for
multi-radio WMNs, but it is still very challenging when it comes to its implementation. Although IEEE 802.11s introduces new inter-working, routing and wireless frame forwarding at the link layer, the multi channel architecture receives less attention due to many unsolved challenges that arises while mesh service set works over multiple frequencies.
This research work tries to give a solution to the needs of designing an efficient channel assignment mechanism.
As a result we have proposed a new static channel assignment based on the fact that not all wireless links are practically useful. Our mechanism prunes the network topology by removing weak wireless links and improves the network
performance by reaching a more diverse channel-radio assignation solution.
Toward designing a distributed channel assignment we propose a new game theory based formulation of channel assignment which is applicable to a realistic scenario with imperfect information at each router. We have proposed a distributed and hybrid channel assignment protocol based on the game formulation. The proposed channel assignment makes wireless router to
be able to follow the unpredictable changes in the wireless environment.
We also investigated the types of channel assignment protocols which can be adapted to the IEEE 802.11s based mesh network and improve the network good-put in terms of data delivery ratio and end-to-end delay.
CitacióAmiri Nehzad, M. Channel assignment protocols for multi-radio multi-channel wireless mesh netwworks. Tesi doctoral, UPC, Departament d'Arquitectura de Computadors, 2013. DOI 10.5821/dissertation-2117-94740. Disponible a: <http://hdl.handle.net/2117/94740>
Dipòsit legalB. 5411-2013
Col·leccions
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TMAN1de1.pdf | 2,452Mb | Visualitza/Obre |