International Journal of Advanced Research in Computer Science and Software Engineering (IJARCSSE)
Wireless Sensor Networks (WSNs) have become a popular area of research in recent years due to their number of strengths and applications in various domains. Sensor networks can be deployed over a large geographical area (a few meters to kilometres or larger than that) through deploying small devices known as sensors. In accordance with deployment of nodes the WSNs could be of two types: Unstructured and structured WSN. The difference between them is that in unstructured WSN nodes are densely and randomly deployed over a field which makes network management tasks difficult such as detecting failures and connectivity management since there are large number of nodes where as in structured WSN some or all nodes are densely deployed in pre-planned manner.