Certain improvements in deployment and routing for wireless sensor network

Abstract

Multiple sensor nodes are required to collect the information from a source node and it transfer towards the sink node which create a network. According to communication channel, the sensor network can be further classified into wired sensor network and wireless sensor network. The Wireless Sensor Networks (WSN) has proved to be useful in several innovative applications, such as environmental monitoring, industrial monitoring, health care monitoring, military applications etc. Fundamentally, the nodes are work under severe resource constraints such as limited battery power, computing power, memory, limited bandwidth and communication capability. Sensor node deployment and routing are rudimentary issues in WSN. The main motive of this research is to enhance the coverage area and energy efficiency of WSN using novel deployment strategy and routing algorithms respectively. Based on deployment strategy, the WSN can be either random or deterministic. According to various deployment strategy proposed by the researchers, most of them assumes that the shape of coverage region of interest is square. In square shape coverage region of interest, the researchers are facing an issue of coverage hole due to antithetical shape between communications range and coverage region of interest. Among the various deployment researches, improve the coverage of bounded region is one of the prime researches in WSN. Area coverage is based on how effectively covered an area by minimum number of sensor nodes. Most of the researcher contemplate the coverage region of interest as square shape region and manifest that the radio range as circle. It is popularly known that, the area of a circle is much higher than the area of a square because its perimeter is much higher than the perimeter of square. In order to utilize such advantage of circle, coverage region of interest is presumed as circle for sensor node deployment. newline