Medium Access and Routing In Multi Hop Wireless Infrastructures: A research in wireless networks Performance analysis using OPNET simulator - Couverture souple

Wazwaz, Ayman

 
9783845442242: Medium Access and Routing In Multi Hop Wireless Infrastructures: A research in wireless networks Performance analysis using OPNET simulator
Couverture souple
ISBN 10 : 3845442247 ISBN 13 : 9783845442242
Editeur : LAP LAMBERT Academic Publishing, 2011

Synopsis

Multi hop wireless infrastructures can be used as an extension to fixed infrastructures, where wireless nodes form a large network that provides access to the fixed network infrastructure, such as the internet, via multiple wireless hops. Wireless LANs and routing techniques, used in ad hoc networks, can be used in such a network. In this work, we use the IEEE 802.11 standard, extended with power control to optimize the performance of such a network. This work focuses on the Medium Access Control (MAC) mechanism, through Carrier Sense Multiple Accesses with Collision Avoidance (CSMA/CA). By limiting the transmission power to the level just sufficient for correct reception at the receiver, the network is able to have multiple transmissions performed simultaneously, and reduces the interference between transmitting nodes. We propose a routing algorithm that uses paths as efficient as possible in terms of power, interference level and number of hops. Validation of some of the proposed mechanisms has been done with the OPNET modeler simulator, using different models for path loss, traffic distributions, and topologies. The results show higher performance when using power control.

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Présentation de l'éditeur

Multi hop wireless infrastructures can be used as an extension to fixed infrastructures, where wireless nodes form a large network that provides access to the fixed network infrastructure, such as the internet, via multiple wireless hops. Wireless LANs and routing techniques, used in ad hoc networks, can be used in such a network. In this work, we use the IEEE 802.11 standard, extended with power control to optimize the performance of such a network. This work focuses on the Medium Access Control (MAC) mechanism, through Carrier Sense Multiple Accesses with Collision Avoidance (CSMA/CA). By limiting the transmission power to the level just sufficient for correct reception at the receiver, the network is able to have multiple transmissions performed simultaneously, and reduces the interference between transmitting nodes. We propose a routing algorithm that uses paths as efficient as possible in terms of power, interference level and number of hops. Validation of some of the proposed mechanisms has been done with the OPNET modeler simulator, using different models for path loss, traffic distributions, and topologies. The results show higher performance when using power control.

Biographie de l'auteur

From Hebron (Al-khaleel), Palestine, was born in 1976. In 1999, he did his bachelor in computer engineering in Palestine Polytechnic University. In 2003, he got a grant to study master in Telematics in the University of Twente, the Netherlands. He did his master thesis in Wireless mesh networks, and studied the behavior and how to enhance WLANs

Les informations fournies dans la section « A propos du livre » peuvent faire référence à une autre édition de ce titre.

Éditeur
LAP LAMBERT Academic Publishing
Date d'édition
2011
Langue
anglais
ISBN 10 
3845442247
ISBN 13 
9783845442242
Reliure
Broché
Nombre de pages
100
Coordonnées du fabricant
non disponible
Personne responsable
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