一种基于ContikiMAC协议的MAC层动态RDC调整算法

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中图分类号：TN929.5；TP212.9 文献标识码：A 文章编号：1006-8228（2025）09-22-06

Abstract：ToovercomethelimitationoffixedRadioDutyCycle（RDC）withintheContikiMACprotocolattheMediumAces Control（MAC）layerofwirelesssensornetworkswhichlacksadaptabilitytodynamicfluctuationsinnetworkload，thispaper introducesanadaptivelow-powerenhancementalgorithmbasedontheContikiMACProtocol：theAdaptiveDynamicContikiMAC Protocol.ThisproposedalgorithmdynamicallyoptimizestheRDCbyintegratingthreekeyparameters：nodenetworktraficload， real-timenodeenergylevels，anddeviationfromaveragenodepower.Simulationresultsdemonstratethatundermulti-hopcomplex medium-to-high trafic scenarios，the proposed protocol achieves a 5% reduction in average network duty cycle，an approximate 1% （204 improvement in average packet delivery ratio，and a 15% decrease in end-to-end delay. Collctively，these enhancements contribute to overall improved network performance.

Keywords：Radio Duty Cycle;Adaptive Dynamic ContikiMAC Protocol; Trafic Load;End-to-End Dela

0引言

介质访问控制（Medium AccessControl，MAC）协议位于无线传感器网络中的数据链路层，主要功能是解决网络内的多个节点间共享单一信道的问题，并决定节点何时以及采用何种方式占用无线信道进行数据传输，避免节点在传输时产生碰撞冲突。（剩余6840字）