Research Area:  Wireless Sensor Networks
Wireless sensor networks (WSNs) incorporate small devices known as sensors. These sensors monitor the deployment field and are responsible for communicating the sensed data periodically to the base station. Therefore, conserving the battery power of these sensors and the efficient coverage are the two important issues that need to be addressed especially in the cases where the sensors are having limited sensing range. In this paper, we intent to address the above mentioned issues by judiciously deploying the sensor nodes in WSN such that the energy efficient network along with the desirable coverage is obtained. In this paper, the considered deployment field is divided into concentric circles such that the area of each annulus is equal. Probability density function (PDF) is designed based on node density in each annulus. A node distribution algorithm is then proposed using the above PDF. The execution of the proposed distribution scheme is assessed with regard to the network life, energy balancing and the coverage obtained in the network. The results of the proposed scheme is compared with the other present schemes through simulation. It is noticed that the suggested scheme shows better results than other node distribution schemes.
Author(s) Name:  Richa Mishra, Rajeev K. Tripathi and Ajay K. Sharma
Journal name:  Wireless Personal Communications
Publisher name:  Springer
Volume Information:  volume 105, pages 61–85 (2019)
Paper Link:   https://link.springer.com/article/10.1007/s11277-018-6103-9