A Topology Control Algorithm for Interference and Energy Efficiency in Wireless Sensor Networks

Abstract

Abstract. Topology control is one of the main techniques that can be used to decrease energy expenditure and/or interference in wireless sensor networks. Less attention, however, has been devoted to algorithms that address energy and interference efficiency together. In this paper, we describe a localized topology control algorithm called TCO which is very efficient in terms of interference while minimizing energy efficiency. In order to evaluate TCO in terms of interference and compare it with other algorithms, we defined a new metric called PICS (Path Interference Cost based on Sender) Spanning Factor. According to this metric, in our experiments TCO outperformed all related localized topology control algorithms and its performance was extremely close to the performance of a centralized algorithm which is optimal according to the PICS spanning factor (a variation of ATASP based on PICS).