Main Article Content
Abstract
Wireless Sensor Network (WSN) is an group of spatially dispersed and dedicated sensor for monitoring and recording the physical conditions of the environment and organizing the collected data at the central location. Data gathering is a common but critical operation in many applications of wireless sensor networks. Innovative techniques that improve energy efficiency to prolong the network lifetime are highly required. The WSN is an emerging technology that shows great promise for various futuristic applications both for mass public and military. The sensing technology combined with processing power and wireless communication makes it lucrative for being exploited in abundance in future. The inclusion of wireless communication technology also incurs various types of security threats. The intent of this paper is to overview of wireless sensor network given that introduction, topology, architecture, challenges, advantages and disadvantages and also discuss the security related issues and challenges in wireless sensor networks. “A wireless sensor network (WSN) is a wireless network consisting of spatially distributed autonomous devices using sensors to cooperatively monitor physical or environmental conditions, such as temperature, sound, vibration, pressure, motion or pollutants, at different locations. WSN is a collection of sensing devices that can communicate wirelessly.” review proposed entire wireless sensor is use full to collect data in remote places and from that data we can try to manage handle the situation on the analysis of collected data. We have also discuss the many things security mechanisms for wireless sensor networks. We also discuss the holistic view of security for ensuring layered and robust security in wireless sensor networks.