Analysis of Deployment Strategies in Wireless Sensor Network (WSN)
First deploy the sensors in network and then compute the traffic load and energy consumption in different regions of the network andthen propose a energy consumption model for accurate energy hole avoidance, which ensures a guaranteed FDT and ADT of thenetwork with minimum number of sensors.
Abstract
The field of wireless networking is experiencing a tremendous growth. With the advancement of wireless communication technologies, Wireless Sensor networks (WSNs) have become useful for many applications. A sensor is a device which allows “sensing” of the environment. It is usually small and resource constrained. A sensor network is composed of large number of sensor nodes. In a wireless sensor network, if the sensors are deployed uniformly across the network, they experience different traffic intensities, thereby, different energy depletion rates depending on their locations. Usually, the sensors near the sink tend to deplete their energy sooner; when enough of them exhaust their energy, they leave holes in the network, causing the remaining nodes to be disconnected from the sink. To avoid energy holes and for achieving maximum lifetime this paper proposes : First deploy the sensors in network and then compute the traffic load and energy consumption in different regions of the network and then propose a energy consumption model for accurate energy hole avoidance. Based on energy consumption model is used for the deployment strategy which ensures a guaranteed FDT and ADT of the network with minimum number of sensors. Keywords— Wireless sensor network, Energy-hole, Node deployment, Network lifetime, Adjustable transmission range.