A Survey of Wireless Sensor Network

The advancement in last decade in electronics & communication, computer science and information technology domain has resulted in the new computing and communication era, known as Wireless Sensor Networks. . In the past the wired sensors were implemented in limited applications in industries. However, wireless implementation makes the wide deployment of sensor nodes more feasible than before. There has been much research regarding the great potential capabilities of wireless sensor networks (WSNs) in applications such as environmental monitoring, habitat study, military surveillance in the battlefield and home automation. With sharp decreases in cost and tangible improvements in storage and processing capabilities of sensor nodes, the integrated presence of sensor nodes in human everyday-life, as the connector of the physical environment with virtual digital world, will be dominant in near future. This paper survey Wireless Sensor Networks (WSN) and their technologies, routing and applications. Keywords— Sensor networks, routing, architecture, operating system, applications of wireless sensor network