摘要
针对无线传感器网络介质访问控制层ContikiMAC协议由于使用固定的无线占空比(RDC),不能适应网络负载的动态变化,提出了一种基于ContikiMAC协议的MAC层自适应动态无线占空比低功耗改进算法。该自适应动态ContikiMAC协议算法通过综合权衡节点网络负载流量、当前节点能量、节点与平均节点功率的偏离度三个关键参数,动态调整RDC。仿真实验证明,自适应动态ContikiMAC协议在多跳复杂的高、中负载流量场景下,网络平均占空比降低了5%,数据包平均交付率提升了1%,端到端平均延迟降低了15%,网络性能整体提升。
To overcome the limitation of fixed Radio Duty Cycle(RDC)within the ContikiMAC protocol at the Medium Access Control(MAC)layer of wireless sensor networks,which lacks adaptability to dynamic fluctuations in network load,this paper introduces an adaptive low-power enhancement algorithm based on the ContikiMAC Protocol:the Adaptive Dynamic ContikiMAC Protocol.This proposed algorithm dynamically optimizes the RDC by integrating three key parameters:node network traffic load,real-time node energy levels,and deviation from average node power.Simulation results demonstrate that under multi-hop complex medium-to-high traffic scenarios,the proposed protocol achieves a 5%reduction in average network duty cycle,an approximate 1%improvement in average packet delivery ratio,and a 15%decrease in end-to-end delay.Collectively,these enhancements contribute to overall improved network performance.
作者
金资凯
王智群
张波
许克杰
Jin Zikai;Wang Zhiqun;Zhang Bo;Xu Kejie(School of Information Engineering,Huzhou University,Huzhou,Zhejiang 313000,China;School of Electronic Information,Huzhou College)
出处
《计算机时代》
2025年第9期22-27,共6页
Computer Era
基金
2023年度湖州市科技计划公益性应用研究项目“无线传感网MAC/RPL协议低功耗关键技术研究”(2023GZ23)。
作者简介
金资凯(1998-),男,浙江台州人,硕士研究生,主要研究方向:无线传感网络和算法等;通讯作者:王智群(1967-),男,安徽泾县人,硕士研究生,副教授,硕士生导师,主要研究方向:无线网络和算法等。
