摘要
依据无线传感网络(WSNs)中WiFi、声或可见光的机会信号,提出基于最优簇数的区块模型(CML)。区块模型为衰落模型,反映机会信号随传播距离的衰减变化。为了减少总体能耗,利用区块模型的泰勒级数展开的不同阶次计算最优簇数。最后利用移动手机、无线接入点、声和光信号建立真实的实验平台,分析最优簇数。实验数据表明,相比Exponential模型和对数Log模型,CML的能耗分别下降约6%和8%。此外,相比于WiFi和声信号,可见光信号的能效提高近12%。
A compartmental model based on optimal cluster number is proposed according to the opportunity signals of WiFi,acoustics and visible light in wireless sensor networks(WSNs).The compartmental model acting as an attenuation model can reflect the attenuation variation of opportunistic signal with propagation distance.In order to minimize the overall energy consumption,the different orders expanded by the Taylor series of the compartmental model is used to calculate the optimal cluster number.The mobile phone,wireless access point,sound and light signals are adopted to establish the real experimental platform to analyze the optimal cluster number.The experimental data shows that the energy consumption of the compartmental model is reduced by about 6%and 8%respectively than that of the exponential model and logarithm model,and the energy efficiency of the visible light signal is improved by about 12%than that of the WiFi and acoustic signals.
作者
刘东
熊召新
LIU Dong;XIONG Zhaoxin(School of Physics and Telecommunication Engineering,Shaanxi University of Technology,Hanzhong 723001,China)
出处
《现代电子技术》
北大核心
2018年第19期19-22,26,共5页
Modern Electronics Technique
基金
陕西省工业科技攻关(2016GY-070)
统筹创新工程计划项目(2016KTZDG)
陕西省教育厅科学研究计划项目(15JK1149)
陕西理工学院人才启动项目(SLGQD15-12)~~
关键词
无线传感网络
能效
簇
机会信号
区块模型
最优簇数
wireless sensor network
energy efficiency
cluster
opportunity signal
compartmental model
optimal cluster number
