NDLI: A fast and reliable protocol for wireless sensor networks in critical conditions monitoring applications

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A fast and reliable protocol for wireless sensor networks in critical conditions monitoring applications

Content Provider	ACM Digital Library
Author	Pazzi, Richard Werner Nelem Araujo, Regina Borges Boukerche, Azzedine
Abstract	Sensor networks are increasingly being deployed for fine-grain monitoring of physical environments subjected to critical conditions such as fire, leaking of toxic gases and explosions. A great challenge to these networks is to provide a fast, reliable and fault tolerant channel for events diffusion, which meets the requirements of query-based, event-driven and periodic sensor networks application scenarios, even in the presence of emergency conditions that can lead to node failures and path disruption to the sink that receives those events. This paper presents a fault tolerant and low latency algorithm, which we refer to as PEQ (Periodic, Event-Driven and Query-Based Protocol), that meets sensor networks requirements for critical conditions surveillance applications. The algorithm uses the publish/subscribe paradigm to disseminate requests across the network and an ack-based scheme to provide fault tolerance. The algorithm was implemented using NS-2 simulator and compared to the Directed Diffusion paradigm. Important metrics were evaluated showing that the proposed algorithm can be a proper solution to meet constraints and requirements of events delivery in critical conditions monitoring applications.
Starting Page	157
Ending Page	164
Page Count	8
File Format	PDF
ISBN	1581139535
DOI	10.1145/1023663.1023692
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	2004-10-04
Publisher Place	New York
Access Restriction	Subscribed
Subject Keyword	Publish/subscribe Sensor networks Routing protocol
Content Type	Text
Resource Type	Article

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