DocumentCode :
2667326
Title :
A Cross-Layer Architecture for Efficient Multi-Hop Communication in Multi-Channel Multi-Radio Wireless Mesh Networks
Author :
Bononi, Luciano ; Di Felice, Marco ; Molinaro, Antonella ; Pizzi, Sara
Author_Institution :
Dept. of Comput. Sci., Univ. of Bologna, Bologna, Italy
fYear :
2009
fDate :
22-26 June 2009
Firstpage :
1
Lastpage :
6
Abstract :
Multi-radio multi-channel technology is a viable solution to increase the capacity of wireless mesh networks (WMNs). On the one hand, the interference can be reduced by tuning neighbouring nodes on different channels. On the other hand, multi-hop coordination schemes that exploit the presence of multiple radios can be deployed at the MAC layer. In this paper, we propose a novel cross-layer architecture that provides efficient end-to-end communication in multi-radio multi-channel WMNs. The proposed solution includes both a distributed channel assignment scheme integrated in the routing protocol and a multi-channel MAC protocol which implements a "cut-through" mechanism to reduce the multi-hop contention delay. The simulation results confirm that the proposed architecture produces lower end-to-end delay and MAC overhead in a chain topology, when compared with other existing multi-channel MAC solutions for WMNs.
Keywords :
access protocols; channel allocation; channel capacity; interference suppression; radio networks; routing protocols; telecommunication network topology; wireless channels; MAC protocol; WMN; chain topology; channel capacity; cross-layer architecture; cut-through mechanism; distributed channel assignment scheme; interference reduction; multichannel multiradio wireless mesh network; multihop communication; multihop contention delay reduction; routing protocol; Access protocols; Channel allocation; Computer architecture; Deafness; Delay; Interference; Media Access Protocol; Routing protocols; Spread spectrum communication; Wireless mesh networks;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Sensor, Mesh and Ad Hoc Communications and Networks Workshops, 2009. SECON Workshops '09. 6th Annual IEEE Communications Society Conference on
Conference_Location :
Rome
Print_ISBN :
978-1-4244-3938-6
Type :
conf
DOI :
10.1109/SAHCNW.2009.5172912
Filename :
5172912
Link To Document :
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