A framework for opportunistic scheduling in wireless networks
Computer Networks: The International Journal of Computer and Telecommunications Networking
Centralized channel assignment and routing algorithms for multi-channel wireless mesh networks
ACM SIGMOBILE Mobile Computing and Communications Review
Characterizing the capacity region in multi-radio multi-channel wireless mesh networks
Proceedings of the 11th annual international conference on Mobile computing and networking
Energy-Efficient Localized Topology Control Algorithms in IEEE 802.15.4-Based Sensor Networks
IEEE Transactions on Parallel and Distributed Systems
Superimposed code based channel assignment in multi-radio multi-channel wireless mesh networks
Proceedings of the 13th annual ACM international conference on Mobile computing and networking
Minimum Interference Channel Assignment in Multiradio Wireless Mesh Networks
IEEE Transactions on Mobile Computing
IEEE/ACM Transactions on Networking (TON)
Energy-Efficient SINR-Based Routing for Multihop Wireless Networks
IEEE Transactions on Mobile Computing
Practical, distributed channel assignment and routing in dual-radio mesh networks
Proceedings of the ACM SIGCOMM 2009 conference on Data communication
QuRiNet: a wide-area wireless mesh testbed for research and experimental evaluations
COMSNETS'10 Proceedings of the 2nd international conference on COMmunication systems and NETworks
Energy efficient transmission scheduling for delay constrained wireless networks
IEEE Transactions on Wireless Communications
A tutorial on cross-layer optimization in wireless networks
IEEE Journal on Selected Areas in Communications
IEEE Journal on Selected Areas in Communications
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Endowing mesh routers with multiple radios is a recent solution to improve the performance of wireless mesh networks (WMNs). The problem how to route flows and assign channels to radios in multi-radio WMNs has attracted a lot of attention in the recent years. However, the approaches proposed so far have mainly focused on reducing interference or maximizing the throughput. Little attention has been paid to the energy consumption of wireless mesh networks. However, with the rising concerns about the energy consumed by communication infrastructures, it makes sense to consider the minimization of the energy consumption as an objective of the channel assignment and routing problem. Our work stems from the observation that an idle radio simply overhearing a frame consumes nearly the same power as the radio actually receiving the frame. Hence, energy may be saved by turning off a number of radios, if the performance of the network is not impaired. In this paper, we define the energy-efficient channel assignment and routing problem, which is NP-complete, and propose a heuristic algorithm. We also present a Mixed Integer Linear Programs (MILP) to find an optimal solution to the energy-efficient channel assignment and routing problem. Finally, we show the results of extensive simulation studies we conducted to assess the effectiveness of the proposed algorithm. Such results show that our heuristic outperforms a previous proposal and that, on the average, it keeps 10% more radios turned on than the optimal solution.