无线传感器网络中一种自适应占空比的S-MAC功率控制算法研究  

A Modified Adaptive Duty Cycle S-MAC Power Control Algorithm in WSN

作　　者：何少尉 HE Shaowei(Zhejiang Post and Telecommunication College,Shaoxing Zhejiang 312366,China)

机构地区：[1]浙江邮电职业技术学院,浙江绍兴312366

出　　处：《通信技术》2021年第2期384-388,共5页Communications Technology

基　　金：浙江省“十三五”第二批教改项目(JG20191009)。

摘　　要：功率控制是无线传感器网络中的一项关键技术。针对S-MAC协议中节能算法效率不高的问题,提出一种改进的自适应占空比的功率控制算法,通过获得不同发送时间条件下最高能效所需要的占空比,并在此基础上分析在不同占空比下的节能效果,提高平均跳距取值的准确性。仿真结果表明,自适应占空比的协议功率控制算法具有很强的灵活性和更好的能源效率,能有效降低能耗,减少网络内的干扰,延长网络的生存时间。Power control is a key technology in WSN(Wireless Sensor Network).Aiming at the low efficiency of energy-saving algorithm in S-MAC protocol,a modified adaptive duty cycle power control algorithm is proposed.By obtaining the duty cycle required by the highest energy efficiency under different transmission time conditions,the energy-saving effect under different duty cycles is analyzed,and the accuracy of the average hop value is improved.The simulation results indicate that the adaptive duty cycle protool power control algorithm has strong flexibility and better energy efficiency,which can effectively reduce energy consumption,decrease the interference in the network,and extend the network lifetime.

关 键 词：无线传感器网络 S-MAC协议 功率控制 自适应 

分 类 号：TN923[电子电信—通信与信息系统]