Ad-hoc On-Demand Distance Vector Routing
WMCSA '99 Proceedings of the Second IEEE Workshop on Mobile Computer Systems and Applications
QUORUM: quality of service in wireless mesh networks
Mobile Networks and Applications
Wireless mesh networks: a survey
Computer Networks: The International Journal of Computer and Telecommunications Networking
Differentiated services for wireless mesh backbone
IEEE Communications Magazine
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Due to their self-configuration and autoconfiguration properties, Wireless Mesh Networks (WMNs) are expected to support a plethora of applications, including traditional Internet services and novel multimedia applications. Service differentiation is needed to support applications with different Quality of Service (QoS) requirements. In this paper, we propose a novel cross-layer framework that provides efficient communication and service differentiation in multi-radio multi-channel WMNs. The proposed solution includes a distributed channel allocation scheme, integrated in the routing protocol, and a multi-channel MAC protocol, inspired to the IEEE 802.11e EDCA (Enhanced Distributed Channel Access). At the MAC layer, we propose "fast-forwarding" mechanisms to reduce the contention delay of delay-sensitive applications in multi-hop topologies. At the network layer, the channel allocation scheme aims at loading channels with an equal number of per-class traffic flows. The simulation results confirm the effectiveness of the proposed scheme in providing differentiated treatment to traffic classes with different QoS requirements.