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.
A Cross-Layer Architecture for Efficient Multi-Hop Communication in Multi-Channel Multi-Radio Wireless Mesh Networks / Bononi L.; Di Felice M.; Molinaro A.; Pizzi S.. - STAMPA. - (2009), pp. 5172912.1-5172912.6. (Intervento presentato al convegno 6th Annual IEEE Communications Society Conference on Sensor, Mesh and Ad Hoc Communications and Networks Workshops, 2009 (IEEE SECON 2009) tenutosi a Rome nel 22-26 June 2009) [10.1109/SAHCNW.2009.5172912].
A Cross-Layer Architecture for Efficient Multi-Hop Communication in Multi-Channel Multi-Radio Wireless Mesh Networks
BONONI, LUCIANO;DI FELICE, MARCO;
2009
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.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
