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A Distributed Scheduling Algorithm to Improve Lifetime in Wireless Sensor Network based on Geometric Placement of Sensors with Coverage and Connectivity Constraints

Authors:
Diéry Ngom
Pascal Lorenz
Bamba Gueye

Keywords: Wireless Sensor Network; network lifetime; coverage; network connectivity

Abstract:
Wireless Sensors Network (WSN) are generally used in hostile environment and have several resource constraints such as limited energy, limited memory, limited communication capacities, etc. These limitations can cause changes topology, isolation of sensors nodes, network partitioning; so that they can reduce the network lifetime and degrade the coverage of the monitoring area, and the network connectivity. Therefore placement strategies of sensors nodes and sleep/wakeup policy should be plan in a way to improve their lifetime while maintaining full coverage and network connectivity. This paper proposes a novel algorithm that reduces the energy consumption under coverage and network connectivity constraints. The obtained results show that sensors nodes can save up to 30% of their energy with respect to previous works.

Pages: 57 to 63

Copyright: Copyright (c) IARIA, 2015

Publication date: August 23, 2015

Published in: conference

ISSN: 2308-4405

ISBN: 978-1-61208-425-1

Location: Venice, Italy

Dates: from August 23, 2015 to August 28, 2015