Sensor Networks in real world

The sensor networks can be used for various application areas. For those application areas, there are different technical issues that researchers are currently resolving. In the deployment time sensors are used wireless ad-hoc networking features. Since sensor networking used in various areas it should have domain specific networking features such as protocols and algorithms. The sensors are scattered over the area that we want to extract data we called sensor field. Each scattered sensor can gather data from sensor field and process that if it is necessary. Then the information gathered by that node is routed to a gathering point that called sink. From the sink we can use that gathered information.

There are some design issues to be considered in sensor networking. First one is fault tolerance. Some nodes may not work as expected. In that case failure nodes should not affect to the entire network functionality. Power consumption is very important in the sensor networking. Sensor is a battery powered device and in some occasions we can’t change those batteries frequently (Military applications). Therefore we should have power saving methods to long last these nodes. Bandwidth in sensor nodes is not much higher. Therefore we should manage that with our resources. The sensor networking is currently used in many areas. Such as monitoring habitat, Military applications, Vehicle Monitoring, Disaster management systems, Chemical and Biological sensors etc...