题名 新的无线传感器网络覆盖控制算法
被引量:32
1
作者
韩志杰
吴志斌
王汝传
孙力娟
肖甫
机构
中国科技大学计算机科学技术学院
晨星软件研发(深圳)有限公司
南京邮电大学计算机学院
出处
《通信学报》
EI
CSCD
北大核心
2011年第10期174-184,共11页
基金
国家自然科学基金资助项目(60973139
61003039
+17 种基金
61003236
61103195)
江苏省科技支撑计划(工业)项目(BE2010197
BE2010198)
江苏省级现代服务业发展专项资金
江苏省高校自然科学基础研究项目(10KJB520013
10KJB520014)
高校科研成果产业化推进工程项目(JH10-14)
国家和江苏省博士后基金(20100480048
20100471353
1001006B)
江苏高校科技创新计划项目(CX10B-196Z
CX10B-197ZCX10B-198Z
CX10B-199Z
CX10B-200Z)
江苏省六大高峰人才项目(2008118)
教育部高等学校博士学科点专项科研基金(20103223120007)
江苏省计算机信息处理技术重点实验室基金(KJS1022)~~
文摘
首先,设计了节点自适应传感半径调整算法(AASR,adaptive adjustment of sensing radius),通过节点自适应选择最佳的覆盖范围,有效地进行节点覆盖控制,减少节点能量虚耗,提高覆盖效率。其次,从调整效果、能量消耗和覆盖冗余度3个方面对节点自适应传感半径调整算法进行了模拟实验和分析。仿真结果表明,AASR能够有效提高节点生存时间,减少能量消耗,提高覆盖率。
关键词
WSN
覆盖控制
拓扑控制
半径调整
Keywords
WSN
coverage control
topology control
adjustment of sensing radius Optimal approximation model of autocorrelation function of digital image cheng Xiao-gang1
CHEN Qi-mei1
cheng hao2
LIU Guo-qing2
AN Ming-wei1(1.School of Electronic Science and Engineering of Nanjing University
Nanjing 210093
China
2.College of Sciences
Nanjing University of Technology
Nanjing 210009
China) Abstract: Non-stationary stochastic signal was divided into piecewise stationary stochastic signal
and reflecting the sig-nal's characteristics by autocorrelation function of the piecewise stationary stochastic signal.Generally
the autocorrela-tion function was the base of selecting signal base for signal representation.For expressing non-stationary stochastic sig-nal in a precise and effective way
based on the analysis of the natural characteristics of ARMA model and Markov proc-ess
a kind of multi-parameter estimation model of autocorrelation function for piecewise stationary stochastic process was proposed.The computational complexity was reduced
and the approximation effect was improved.Furthermore
the multi-parameter estimation model could also be adapted to the complex non-stationary stochastic signal
The computer simulation demonstrates that the approximation error was decreased significantly. Key words: stochastic process
piecewise stationary process
nonlinear approximation
auto correlation
分类号
TP391
[自动化与计算机技术—计算机应用技术]