Price-based congestion control and local channel-link assignment for multi-radio wireless mesh networks |
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Authors: | Wonyong Yoon Dongman Lee Byoungheon Shin Seon Yeong Han |
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Affiliation: | 1. Department of Electronic Engineering, Dong-A University, Hadan-dong 84, Saha-gu, Busan, Republic of Korea;2. Department of Computer Science, KAIST, 291 Daehak-ro, Yuseong-gu, Daejon, Republic of Korea |
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Abstract: | In multi-radio multi-channel wireless mesh networks, engineering the network capacity requires a complex cross-layer design. In this paper, in order to make the complex problem implementable in a distributed manner, we make a decoupling approach that breaks down the entire design space into routing and initial channel assignment, and distributed congestion control and local channel reassignment. We propose a unified priced-based framework for distributed congestion control and localized channel-link assignment algorithms. We demonstrate the convergence of the proposed algorithms with respect to different fairness objectives (i.e., proportional fairness and max–min fairness) via simulation on both grid and random topologies. The proposed algorithms achieve faster convergence with less overhead in the control and forwarding plane than previous multi-path based algorithms. |
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Keywords: | Multi-radio network Congestion control Channel assignment Price-based control Network utility maximization |
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