Routing in multi-radio, multi-hop wireless mesh networks
Proceedings of the 10th annual international conference on Mobile computing and networking
A Multi-Radio Unification Protocol for IEEE 802.11 Wireless Networks
BROADNETS '04 Proceedings of the First International Conference on Broadband Networks
Interference-aware topology control and QoS routing in multi-channel wireless mesh networks
Proceedings of the 6th ACM international symposium on Mobile ad hoc networking and computing
Capacity of multi-channel wireless networks: impact of number of channels and interfaces
Proceedings of the 11th annual international conference on Mobile computing and networking
XORs in the air: practical wireless network coding
Proceedings of the 2006 conference on Applications, technologies, architectures, and protocols for computer communications
Capacity of multi-channel wireless networks with random (c, f) assignment
Proceedings of the 8th ACM international symposium on Mobile ad hoc networking and computing
DCAR: Distributed Coding-Aware Routing in Wireless Networks
ICDCS '08 Proceedings of the 2008 The 28th International Conference on Distributed Computing Systems
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Minimum-cost multicast over coded packet networks
IEEE Transactions on Information Theory
Star-Structure Network Coding for Multiple Unicast Sessions in Wireless Mesh Networks
Wireless Personal Communications: An International Journal
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Efforts to improve the capacity of multi-channel, multi-interface wireless mesh networks have mainly focused on mitigating channel interference and balancing traffic loads. In a limited number of channels and interfaces, this approach cannot help encountering the network overload and traffic saturation, as network traffic increases. It will be serious, especially at intersecting nodes such as the nodes around gateways for last-mile connectivity. Considering this situation, which degrades the aggregate throughput of networks, a more aggressive strategy to cope with network traffic saturation is necessary. We propose a novel cooperative network coding scheme, which exploits coded-overhearing, for unicast in multi-channel, multiinterface wireless mesh networks. Further, we present a coding-aware channel assignment algorithm with new metrics to support our network coding scheme, resulting in substantial improvement in the aggregate throughput. The combination of the proposed network coding scheme and the channel assignment algorithm contributes to overcoming geographical limitations in conventional network coding. It also shows better flexibility for the insufficient number of interfaces and the outage of coding opportunities. Our evaluation results show maximally a 52% improvement in terms of the aggregate throughput by using our coded-overhearing algorithm with a coding-aware channel assignment.