A Literature Survey on Security and Clustering in Wireless Sensor Networks

Abstract-- Wireless sensor networks are often used for monitoring sensitive data. Therefore security is a significant issue in WSNs. We point out the constraints, security requirements and attacks in WSNs. Clustering is the concept which increases the network scalability and decreases the energy consumption in WSNs. This article presents importance of clustering and clustering algorithm in WSNs. We first outline the basics of wireless sensor networks and general notion of cluster that is how the clusters are formed and its communication. Also we highlight merits, demerits and issues of clustering protocols in wireless sensor networks