A Gravitational Search Algorithm for Finding Near-optimal Base Station Location in Two-Tiered WSNs

In designing Wireless Sensor Networks (WSNs), the main issue is limited resource for each sensor. Hence, offering ways to optimize energy consumption in WSNs which eventually increases the network lifetime is strongly felt. In this paper, a Gravitational Search Algorithm (GSA) is proposed for finding nearly optimal Base Station (BS) location in two-tiered heterogeneous WSNs, where Application Nodes (ANs) may own different data transmission rates, initial energies and parameter values. Experimental results and comparisons with Particle Swarm Optimization and Exhaustive Grid Search show better performance of the authors' proposed approach.

Provided by: Institute of Electrical & Electronic Engineers Topic: Data Centers Date Added: Jan 2013 Format: PDF

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