EASE: An energy-efficient in-network storage scheme for object tracking in sensor networks

Jianliang XU*, Xueyan Tang, Wang Chien Lee

*Corresponding author for this work

Research output: Chapter in book/report/conference proceedingConference contributionpeer-review

19 Citations (Scopus)

Abstract

Energy efficiency is one of the most critical issues in the design of wireless sensor networks. Observing that many sensor applications for object tracking can tolerate a certain degree of imprecision in location data of tracked objects, this paper studies precision-constrained approximate queries that trade answer precision for energy efficiency. We develop an Energy-conserving Approximate StoragE (EASE) scheme to efficiently answer approximate location queries by keeping error-bounded imprecise location data at some designated storage node. The data impreciseness is captured by a system parameter, i.e., approximation radius. We analyze the performance of EASE in terms of message complexity and derive the optimal setting of approximation radius. We show via extensive simulation experiments that, as compared to a conventional approach, the EASE scheme cuts down the network traffic by up to 96% and, in most cases, prolongs the network lifetime by a factor of 2-5.

Original languageEnglish
Title of host publication2005 Second Annual IEEE Communications Society Conference on Sensor and AdHoc Communications and Networks, SECON 2005
Pages396-405
Number of pages10
DOIs
Publication statusPublished - 2005
Event2005 Second Annual IEEE Communications Society Conference on Sensor and AdHoc Communications and Networks, SECON 2005 - Santa Clara, CA, United States
Duration: 26 Sep 200529 Sep 2005

Publication series

Name2005 Second Annual IEEE Communications Society Conference on Sensor and AdHoc Communications and Networks, SECON 2005
Volume2005

Conference

Conference2005 Second Annual IEEE Communications Society Conference on Sensor and AdHoc Communications and Networks, SECON 2005
Country/TerritoryUnited States
CitySanta Clara, CA
Period26/09/0529/09/05

Scopus Subject Areas

  • Engineering(all)

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