TECA: a topology and energy control algorithm for wireless sensor networks

Authors:
Marcel Busse;Thomas Haenselmann;Wolfgang Effelsberg
Affiliations:
University of Mannheim, Mannheim, Germany;University of Mannheim, Mannheim, Germany;University of Mannheim, Mannheim, Germany
Venue:
Proceedings of the 9th ACM international symposium on Modeling analysis and simulation of wireless and mobile systems
Year:
2006

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Abstract

In order to prolong a sensor's operational lifetime, a main challenge in the field of sensor networks is energy efficiency. Since much energy is spent for the radio communication, many approaches exist that put sensor nodes into a sleep mode with the communication radio turned off. We propose a new Topology and Energy Control Algorithm called TECA that uses a very simple clustering approach and connects these clusters in a very energy-efficient way. Using the concept of virtual links, passive nodes decide in a distributed way if they should join the topology and stay active or rather go into a low-powered sleep mode. Compared to other approaches, TECA establishes a well-connected topology and is able to save more energy. By means of simulations, we show that TECA outperforms the two other approaches in terms of operational lifetime, packet delivery, and network connectivity.