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      Joint routing, gateway selection, scheduling and power management optimization in wireless mesh networks

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      Author
      Uzunlar Onur
      Gökbayrak, Kağan
      Yıldırım, E. A.
      Date
      2012-05
      Source Title
      62nd Annual Conference and Expo of the Institute of Industrial Engineers 2012
      Publisher
      Institute of Industrial Engineers
      Pages
      3169 - 3178
      Language
      English
      Type
      Conference Paper
      Item Usage Stats
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      Abstract
      The third generation (3G) wireless communications technology delivers user traffic in a single step to the wired network via base station; therefore it requires all base stations to be connected to the wired network. On the other hand, in the fourth generation (4G) communication systems, it is planned to have the base stations set up so that they can deliver each other's traffic to a small number of base stations equipped with wired connections. In order to improve system resiliency against failures, a mesh structure is preferred. The most important issue in Wireless Mesh Networks (WMN) is that the signals that are simultaneously transmitted on the same frequency channel can interfere with each other to become incomprehensible at the receiver end. It is possible to operate the links at different times or at different frequencies, but this also lowers capacity usage. In this paper, we tackle the planning problems of WMN, using 802.16 (Wi-MAX) protocol, such as deploying a given number of gateway nodes along with operational problems such as routing, management of power used by nodes and scheduling while maximizing the minimum service level provided. In order to be able to apply our results to real systems, we work with optimization models based on realistic assumptions such as physical interference and single path routing. We propose heuristic methods to obtain optimal or near optimal solutions in reasonable time. The models are applied to some cities in Istanbul and Ankara provinces.
      Keywords
      Gateway selection
      Integer programming
      Wireless mesh networks
      Base stations
      Exhibitions
      Gateways (computer networks)
      Heuristic methods
      Integer programming
      Mobile telecommunication systems
      Optimization
      Scheduling
      Wireless mesh networks (WMN)
      Wireless telecommunication systems
      Different frequency
      Fourth generation (4G)
      Near-optimal solutions
      Operational problems
      Optimization models
      Single-path routing
      Third generation (3G) wireless communications
      MESH networking
      Permalink
      http://hdl.handle.net/11693/28235
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