A Time-Efficiency Multi-Channel MAC Protocol for Wireless Sensor Networks

Abstract:

In the research for the signal acquisition of the mechanical equipment, signals need to be obtained from the inside of the relatively closed box. Timely and reliably transmission for signals on key points is necessary, which can guarantee the validity of condition monitoring and fault diagnosis. In this paper, we present a novel packet delivery mechanism called time-efficiency multi-channel MAC protocol for wireless sensor networks, which can efficiently decrease the delay time of data transmission between the sink node and terminal nodes in the star topology structure for the wireless sensor networks. All the nodes used in this protocol have a multi-channel wireless transceiver, which can switch between channels easily. Each terminal node gets the signal channel by competition with other nodes. Sink node is the master device, whose functions include receiving all the data packets from other nodes, regulating the listening priority of each channel and announcing synchronization information. Furthermore, in order to reduce the probability of channel competition with other node, a self-adapting choice mechanism is employed, which is based on received signal strength indicator (RSSI) and communication success rate. In this way, the sink node can choose the appropriate signal channel and terminal node to communicate. Finally, the protocol and its performance are analyzed, and the feasibility is evaluated.

• Periodical: Key Engineering Materials (Volume 572)
• Pages: 455-458
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.572.455
• Online since: September 2013
• Authors: Shu Han, Xiao Ming Liu, Yao Yao, Yang Jun Zhou
• Keywords: Channel Contention, MAC Protocol, Multi-Channel, Star Topology, Time Efficiency, Wireless Sensor Network (WSN)

References

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DOI: 10.1109/infcom.2011.5935095

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