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Energy-Efficient Routing Algorithm with Guaranteed Message Transmission Reliability for Wireless Sensor Networks  

Baek, Jang-Woon (경북대학교 전자전기컴퓨터학부 모바일컴퓨팅 & 임베디드시스템 연구실)
Seo, Dae-Wha (경북대학교 전자전기컴퓨터학부 모바일컴퓨팅 & 임베디드시스템 연구실)
Nam, Young-Jin (대구대학교 컴퓨터.IT공학부)
Abstract
This paper proposes a k-disjoint-path routing algorithm that provides energy efficient and reliable message transmission in wireless sensor networks. The proposed algorithm sends messages through a single path without the occurrence of critical events. However, it sends through k disjoint paths(k>1) under the occurrence of critical events. The proposed algorithm detects the occurrence of critical events by monitoring changing data patterns, and calculates k from a well-defined fault model and the target-delivery ratio. Our simulations reveal that the proposed algorithm is more resilient to node failure than other routing algorithms, and it also decreases energy consumption and reduces the average delay much more than multi-path and path-repair algorithms.
Keywords
Wireless sensor networks; Disjoint-path routing; Message transmission reliability;
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