Analysis and Optimization of MAC Protocol of SMAC-based Wireless Sensor Network
Xueying Zhao · Modern Electronics Technique · 2011
The MAC protocol is introduced.A wireless sensor network MAC layer protocol based on competition named S-MAC protocol is analyzed.The core of this paper is the design scheme of MAC protocol of a new wireless sensor network,and the ATC-SMAC protocol based on the dynamic adjustment of duty cycle is proposed.This protocol improved the disadvantages of fixed duty cycle of S-MAC,and used the strategy of adjusting the duty cycle according to average packet delay on one node.Nodes with different traffic owned different work time according the duty cycle dynamic adjustment of each node.The protocol dynamically adjusted the duty cycle according to the traffic of each node.According to the simulation,the ATC-MAC is better than S-MAC in end to end delay,energy consumption and throughput.