Application-level assessment of approaches to coordinate node mobility in wireless sensor and actor networks

Authors:
Martín López-Nores;José J. Pazos-Arias;Jorge García-Duque;Yolanda Blanco-Fernández;Alberto Gil-Solla;Manuel Ramos-Cabrer;Rebeca P. Díaz-Redondo;Ana Fernández-Vilas
Affiliations:
Department of Telematics Engineering, University of Vigo, 36310 Vigo, Pontevedra, Spain;Department of Telematics Engineering, University of Vigo, 36310 Vigo, Pontevedra, Spain;Department of Telematics Engineering, University of Vigo, 36310 Vigo, Pontevedra, Spain;Department of Telematics Engineering, University of Vigo, 36310 Vigo, Pontevedra, Spain;Department of Telematics Engineering, University of Vigo, 36310 Vigo, Pontevedra, Spain;Department of Telematics Engineering, University of Vigo, 36310 Vigo, Pontevedra, Spain;Department of Telematics Engineering, University of Vigo, 36310 Vigo, Pontevedra, Spain;Department of Telematics Engineering, University of Vigo, 36310 Vigo, Pontevedra, Spain
Venue:
Computer Communications
Year:
2010

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Abstract

Wireless networks of sensor and actor devices require a great deal of coordination to fulfil their objectives. This paper focuses on the dimension of actor-actor coordination, that involves analyzing the data gathered by the sensors and deciding how to act on the environment. Specifically, we tackle the open problem of considering the effects of actors' mobility on the communications needed for coordination. Firstly, we define three general approaches to bring mobility concerns into coordination, adapting solutions from the field of ad-hoc networking. Then, we assess the strengths and weaknesses of the three approaches through simulations of an autonomous robotic system in a representative application scenario, namely the extinction of forest fires. The results reveal trade-offs among performance, delays in communication, sensitiveness to timing and positioning imprecisions, and energy consumption.