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Lifetime Maximization for WSNs

Author(s): Mamoun H. M. | Enas M.

Journal: International Journal of Engineering and Technology
ISSN 2049-3444

Volume: 2;
Issue: 9;
Start page: 1512;
Date: 2012;
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Keywords: Wireless Sensor Networks | Lifetime Optimization | Energy Consumption.

This paper presents a new sensor node deployment scheme to maximize sensor network lifetime. The key idea of the proposed scheme is to assign lower transmission power to a sensor node having higher traffic load. In this way, batteries of all nodes in a given area are discharged at the same current, thus they are depleted at the same time. Simulations have been conducted to evaluate the performance of the proposed scheme. Compared with peer work on heterogeneous deployment, the useable battery capacity by using the proposed scheme can be improved, and the operating time per sensor node can be enhanced. Furthermore, the proposed deployment scheme can reduce the number of sensor nodes required to cover the given area, leading to a significant reduction of deployment cost.

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