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      Tree-based channel assignment schemes for multi-channel wireless sensor networks

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      Author(s)
      Terzi, C.
      Korpeoglu, I.
      Date
      2016
      Source Title
      Wireless Communications and Mobile Computing
      Print ISSN
      1530-8669
      Publisher
      John Wiley & Sons Ltd.
      Volume
      16
      Issue
      13
      Pages
      1694 - 1712
      Language
      English
      Type
      Article
      Item Usage Stats
      233
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      193
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      Abstract
      Many sensor node platforms used for establishing wireless sensor networks (WSNs) can support multiple radio channels for wireless communication. Therefore, rather than using a single radio channel for whole network, multiple channels can be utilized in a sensor network simultaneously to decrease overall network interference, which may help increase the aggregate network throughput and decrease packet collisions and delays. This method, however, requires appropriate schemes to be used for assigning channels to nodes for multi-channel communication in the network. Because data generated by sensor nodes are usually delivered to the sink node using routing trees, a tree-based channel assignment scheme is a natural approach for assigning channels in a WSN. We present two fast tree-based channel assignment schemes (called bottom up channel assignment and neighbor count-based channel assignment) for multi-channel WSNs. We also propose a new interference metric that is used by our algorithms in making decisions. We validated and evaluated our proposed schemes via extensive simulation experiments. Our simulation results show that our algorithms can decrease interference in a network, thereby increasing performance, and that our algorithms are good alternatives for static channel assignment in WSNs.
      Keywords
      Multi-channel
      Static channel assignment
      Tree-based channel assignment
      Wireless sensor networks
      Algorithms
      Interference suppression
      Mobile telecommunication systems
      Sensor nodes
      Trees (mathematics)
      Wireless telecommunication systems
      Channel assignment
      Channel assignment scheme
      Extensive simulations
      Multi channel
      Multichannel communication
      Static channels
      Wireless communications
      Wireless sensor network (WSNs)
      Wireless sensor networks
      Permalink
      http://hdl.handle.net/11693/36940
      Published Version (Please cite this version)
      http://dx.doi.org/10.1002/wcm.2646
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      • Department of Computer Engineering 1510
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