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An Operation Scheme of Local Sink in Geographic Routing for Wireless Sensor Networks  

Lee, Eui-Sin (충남대학교 컴퓨터공학과)
Park, Soo-Chang (충남대학교 컴퓨터공학과)
Jin, Min-Sook (충남대학교 컴퓨터공학과)
Park, Ho-Sung (충남대학교 컴퓨터공학과)
Kim, Tae-Hee (충남대학교 컴퓨터공학과)
Kim, Sang-Ha (충남대학교 컴퓨터공학과)
Publication Information
Journal of KIISE:Computing Practices and Letters / v.15, no.3, 2009 , pp. 201-205 More about this Journal
Abstract
This paper addresses issues to efficiently collect and aggregate data of sources within a local and adjacent region in geographic routing for wireless sensor networks. We first introduce the concept of a local sink which collects and aggregates data form source nodes in the region and delivers the aggregated data to a global sink. We also design a model to determine an optimal location of the local sink and propose a mechanism to collect data through the local sink. Simulation results show that the proposed mechanism with the local sink is more efficient in terms of the energy and the data delivery ratio than the existing mechanism without the local sink in a geographic routing.
Keywords
Wireless sensor networks; Geographic routing; Data collection and aggregation; Local sink;
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