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无线传感器网络低功耗穿级采样算法
Alternative TitleLevel crossing sampling algorithm for energy conservation in WSNs
汪扬; 曾鹏; 张琼; 王秋石; 于海斌
Department工业控制网络与系统研究室
Source Publication仪器仪表学报
ISSN0254-3087
2012
Volume33Issue:5Pages:1070-1077
Indexed ByEI ; CSCD
EI Accession number20122815234061
CSCD IDCSCD:4539205
Contribution Rank1
Funding Organization国家自然科学基金(60704046,60725312,60804067); 国家科技重大专项基金(2010ZX03006-005-01); 973计划前期研究专项课题(2010CB334705); 中国科学院知识创新工程重要方向性项目(KGCX2-EW-104,KGCX2-YW-126)资助
Keyword无线传感器网络 穿级采样 Markov链 U-law解码算法 数据恢复
Abstract提出了一种对于无线传感器网络中的应用层数据进行非周期性穿级采样算法;该算法着重考虑在满足误差容限的基础上,有效降低数据的发送次数,以达到降低能耗的目的。运用Markov链权衡数据率和丢包率,以确定对信号区间进行层级划分的门限区间;以此为基础,对信号区间可分配为以均匀分布和以u-law算法实现的非均匀分布的层级。考虑丢包对于穿级采样的影响,提出了穿级采样中丢失数据的有限恢复算法。通过变电站带电场景对于3组共45个节点的物理测试,分析了穿级采样算法的可靠性和能耗,验证了该种采样算法的可用性。
Other AbstractA novel aperiodic level crossing sampling(LCS) algorithm is proposed for the application-layer data of wireless sensor networks(WSNs).The level crossing sampling algorithm is used for energy conservation in WSNs,and it can decrease the times of data transmission and maintain data accuracy.The Markov chain is creatively used to balance the data transmission rate and packet loss rate,and decide the threshold interval for the level partitioning in the level crossing sampling.Two versions of level quantization,which are respectively uniformly distributed quantization and non-uniformly distributed quantization with u-law,are introduced.A limited data recovery algorithm for LCS is suggested to deal with the effect of packet loss on LCS.3 groups of total 45 nodes in an experimental scenario of transformer substation were tested,and the working reliability and energy consumption were analyzed,which verifies the availability of the level crossing sampling. 更多
Language中文
Citation statistics
Cited Times:3[CSCD]   [CSCD Record]
Document Type期刊论文
Identifierhttp://ir.sia.cn/handle/173321/10082
Collection工业控制网络与系统研究室
Corresponding Author汪扬
Affiliation1.中国科学院沈阳自动化研究所
2.辽宁石油化工大学机械工程学院
3.中国科学院研究生院
Recommended Citation
GB/T 7714
汪扬,曾鹏,张琼,等. 无线传感器网络低功耗穿级采样算法[J]. 仪器仪表学报,2012,33(5):1070-1077.
APA 汪扬,曾鹏,张琼,王秋石,&于海斌.(2012).无线传感器网络低功耗穿级采样算法.仪器仪表学报,33(5),1070-1077.
MLA 汪扬,et al."无线传感器网络低功耗穿级采样算法".仪器仪表学报 33.5(2012):1070-1077.
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