AMRoute: ad hoc multicast routing protocol
Mobile Networks and Applications
Routing and link-layer protocols for multi-channel multi-interface ad hoc wireless networks
ACM SIGMOBILE Mobile Computing and Communications Review
Design and implementation of a multi-channel multi-interface network
REALMAN '06 Proceedings of the 2nd international workshop on Multi-hop ad hoc networks: from theory to reality
Journal of Network and Computer Applications
Computers & Mathematics with Applications
Efficient link-heterogeneous multicast for wireless mesh networks
Wireless Networks
On channel assignment and multicast routing in multi-channel multi-radio wireless mesh networks
International Journal of Ad Hoc and Ubiquitous Computing
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Multicasting can be an useful service in wireless mesh networks (WMNs), which have gained significant acceptance in recent years due to their potentials of providing a low-cost wireless backhaul service to mobile clients. Many applications in WMNs require efficient and reliable multicast communication, i.e., with high delivery ratio but with less overhead, among a group of recipients. However, in spite of its significance, there has been little work on providing such a multicast service in multi-channel mesh networks. Traditional multicasting protocols for wireless multi-hop networks mostly assume that all nodes (equipped with a single interface) collaborate on the same channel. The single-channel assumption is not always true for WMNs that often provide the nodes with multiple interfaces for the purpose of substantial performance enhancement. In multi-channel/interface mesh environments, the same multicast data needs to be sent multiple times by a sender node if its neighboring nodes operate on different channels. In this paper, we try to tackle this challenging issue of how to design a multicast protocol more suitable for multi-interface and multi-channel WMNs. Our multicasting protocol builds multicast paths while inviting multicast members, and allocates the same channel to each of neighboring members in a bottom up manner. This mechanism can reduce message overheads and delivery delays while guaranteeing successful message deliveries. For the performance evaluation, we have implemented the proposed scheme on a multi-channel/interface mesh network test-bed with two IEEE 802.11a cards per node.