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      Robust bandwidth allocation in wireless mesh network

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      Author
      Thuc, Tran Kien
      Guruacharya, Sudarshan
      Niyato, Dusit
      Date of Issue
      2012
      Conference Name
      IEEE Global Communications Conference (2012 : Anaheim, California, US)
      School
      School of Computer Engineering
      Abstract
      Bandwidth allocation is important for a mesh network to meet quality of service (QoS) requirements of the users. This bandwidth allocation has to ensure that the maximum throughput is achieved. However, this problem becomes more challenging when the information about a network (e.g., channel quality and hence link capacity) is not accurately known, especially, in a real system whose parameters are uncertain. Therefore, in this paper, we apply the robust optimization technique to develop a model that can tolerate the uncertainty of the system parameters. First, we formulate the bandwidth allocation problem as a constrained optimization problem and its robust counterpart is obtained. Then, we suggest an approach to choose the suitable system parameters so that with a certain high probability, the feasibility of the solution from optimization formulation is ensured for all meaningful realizations of the system parameters. Moreover, we introduce the reduced conservativeness approach for the bandwidth allocation. In this approach, the tradeoff between throughput and robustness to the uncertainty of a system parameter is explored. Specifically, the decrease in throughput will be minimized given the target robustness.
      Subject
      DRNTU::Engineering::Computer science and engineering
      Type
      Conference Paper
      Rights
      © 2012 IEEE.
      Collections
      • SCSE Conference Papers
      http://dx.doi.org/10.1109/GLOCOM.2012.6503360
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