A Hybrid Adaptive Routing Algorithm for Event-Driven Wireless Sensor Networks

Carlos M S Figueiredo,Antonio A F Loureiro,Eduardo F Nakamura

doi:10.3390/s90907287

Carlos M S Figueiredo, Antonio A F Loureiro + Show 1 more

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Journal: Sensors	Publication Date: Sep 10, 2009
Citations: 14	License type: CC BY 3.0

Affiliation: Universidade Federal de Minas Gerais

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Routing is a basic function in wireless sensor networks (WSNs). For these networks, routing algorithms depend on the characteristics of the applications and, consequently, there is no self-contained algorithm suitable for every case. In some scenarios, the network behavior (traffic load) may vary a lot, such as an event-driven application, favoring different algorithms at different instants. This work presents a hybrid and adaptive algorithm for routing in WSNs, called Multi-MAF, that adapts its behavior autonomously in response to the variation of network conditions. In particular, the proposed algorithm applies both reactive and proactive strategies for routing infrastructure creation, and uses an event-detection estimation model to change between the strategies and save energy. To show the advantages of the proposed approach, it is evaluated through simulations. Comparisons with independent reactive and proactive algorithms show improvements on energy consumption.

Highlights

A Wireless Sensor Network (WSN) [1, 2] is a special type of ad hoc network that has become popular due to its wide applicability, which includes environmental, medical, industrial, and military applications [3]
An important issue in WSNs is collecting and processing data perceived from the environment and sending that data to be processed and evaluated by an external entity connected to a sink node
We proposed an adaptive hybrid approach for routing in WSNs, called Multi-MAF

Summary

Introduction

A Wireless Sensor Network (WSN) [1, 2] is a special type of ad hoc network that has become popular due to its wide applicability, which includes environmental, medical, industrial, and military applications [3]. As a consequence, routing data towards the sink node is a fundamental task in WSNs. Due to the resource constraints, different algorithms have been proposed considering specific application and scenario characteristics [4]. Hybrid adaptive approaches for routing are natural choices to deal with dynamic scenarios by choosing the best routing strategy in response to current network conditions In this context, some protocols have been proposed for ad hoc networks (MANETs), such as ZRP [6] and SHARP [7].

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