Journal of Shanghai Jiaotong University ›› 2012, Vol. 46 ›› Issue (09): 1382-1386.

• Automation Technique, Computer Technology • Previous Articles     Next Articles

A Channel Reliability Based Multi-channel MAC Protocol in Wireless Sensor Networks

 XIAO  Rong, JIANG  Ling-Ge, HE  Chen   

  1. (School of Electronic, Information and Electrical Engineering, Shanghai Jiaotong University, Shanghai 200240, China)
  • Received:2011-11-10 Online:2012-09-28 Published:2012-09-28

Abstract:  In order to meet the demand of high bandwidth in resource-constrained sensor networks, a channel-reliability based multi-channel MAC protocol namely RB-MAC was proposed. This protocol introduces a new kind of control packet format and handshaking process. Moreover, a ready-to-send channel list concept and a ready-to-receive channel list concept were proposed. In order to find the most reliable channel for data transmission, the data channel selection problem is transformed into the multiarmed bandit problem which is solved by the upper confidence bound algorithm. The simulation results show that, compared with dynamic channel allocation MAC (DCA-MAC), RBMAC decreases the delay and packet loss ratio, thereby increase the throughput. Besides, RB-MAC is more immune to interferences.  

Key words: wireless sensor networks, multichannel media access control (MAC), control channel, channel reliability

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