A Review - Comparative Study & Optimization of Different Tool Material On AISI 2136 (Plastic Mould Steel) in EDM

There are various applications of Wireless Sensor Networks (WSNs) including industrial, environmental, military, health applications etc. Gathering information about a given condition of environment in a given zone is the main task of these networks. The sensors are being deployed manually or randomly in the area to be monitored. Sensors are very small size and having different constraints like low energy, low communication range and low storage. The deployment strategies for WSN must be able to cope with obstacles and be energy efficient in order to increase the network lifetime. The deployment process is very much important in WSNs because coverage and connectivity is totally dependent on this. Here in this paper we present a review of coverage and connectivity issues and the impact of deployment on these factors. The paper presents the analysis of deployment issues and the factors influencing the deployment of WSNs. In conclusion he paper gives current trends and open issues in this area.