A reliable clustering scheme for wireless sensor networks

The clustered topology is an important mechanism for WSN (wireless sensor networks) to balance the energy consumption, extend the network lifetime, enhance the management efficiency and improve the network scalability. It adapts to use in large scale deployment. CPK (Combined Public Key) algorithm produces public/private keys offline, and the trusted third party is not necessary for the authentication of identity. It provides high security, with low data traffic and memory requirement. A reliable clustering scheme based on CPK is proposed for WSN, here CPK algorithm is introduced to the clustering process to effectively strengthen the network security and drastically reduce the unnecessary energy consumption. The new scheme is of great value for the application of WSN.