Computer Science ›› 2015, Vol. 42 ›› Issue (Z11): 273-276.

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High-throughput and Collision-free Medium Access Control for Wireless Nanosensor Networks

CHI Kai-kai, LIN Yi-min and LI Yan-jun   

  • Online:2018-11-14 Published:2018-11-14

Abstract: Wireless nanosensor networks(WNSNs) are a new type of sensor networks which have some very important and promising applications.Considering the severely low computation capability of nanosensors,the TS-OOK based medium access control(MAC) mechanism with very low computation complexity was proposed.Aiming to eliminate the defects of TS-OOK based MAC that the continuous bit collision may happen and the throughput is low,this paper presented three improved TS-OOK based MAC mechanisms:period-fixed and bandwidth-fair MAC,period-doubling and bandwidth-fair MAC,and priority-aware MAC.All three mechanisms achieve no collision through a few transmissions of control frames between access nodes and relay node.Performance evaluation shows that the enhanced MAC mechanisms have higher throughput and lower transmission delay.

Key words: Wireless nanosensor networks,Access control,Collision avoidance,High throughput

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