Wireless sensor networks (WSN)

Abstract

Wireless sensor networks are becoming very popular technology, it is very important to understand the architecture for this kind of networks before deploying it in any application. This work explores the WSN architecture according to the OSI model with some protocols in order to achieve good background on the wireless sensor network. The wireless sensor network (WSN) is a combination of sensing, computation, and communication into a single tiny device. A sensor network consists of an array of numerous sensor networks of diverse types interconnected by a wireless communication network. Sensor data is shared between these sensor nodes. The system extracts relevant information from the available data. It acts as information source, sensing and collecting data samples from the environment. Node can also act as information sink, receiving dynamic configuration information from other nodes or external entities. The end portion of a node can be an antenna. The WSNs need not communicate directly with the nearest high-power control tower or base station, but only with their local peers. The concept of WSN is based on a simple block sensing. Keywords— Wireless, Layers, Cluster.