Journal on Communications ›› 2014, Vol. 35 ›› Issue (Z2): 165-171.doi: 10.3969/j.issn.1000-436x.2014.z2.022

• Papers • Previous Articles     Next Articles

Multi-channel MAC protocol based on network partitioning for wireless sensor networks

Bin CHENG1,Lin-lin CI1,2,Cheng-ping TIAN1,Ming-hua YANG3   

  1. 1 School of Computer Science and Engineering,Beijing Institute of Technology,Beijing 100081,China
    2 Second Artillery Equipment Academy,Beijing 100085,China
    3 School of Computer and Information Engineering,Beijing Technology and Business University,Beijing 100048,China
  • Online:2014-11-25 Published:2017-06-19
  • Supported by:
    The National Natural Science Foundation of China;China Postdoctoral Science Foundation Project;The Natural Science Foundation of Beijing

Abstract:

The limited amount of available orthogonal channels and noise interference are two major issues to constrain performances of multi-channel MAC protocols in wireless sensor networks (WSN).In conjunction with features of data gathering networks,a partitioning-based multi-channel MAC protocol was designed.Initially it partitioned network into several sub-trees with lower collision factor,without increasing the total value of interference around the whole network.Furthermore,it adopted a coarse-grained channel assignment strategy on basis of graph coloring theory,in order to ensure each sub-tree work on a relative optimal channel.Simulation results show that the proposed MAC protocol can significantly improve throughput and reduce end-to-end latency and packet loss.

Key words: wireless sensor networks, media access control, multi-channel, network partition

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