International Journal of Engineering and Technology

Designing energy-efficient algorithms becomes an important factor for extending the lifetime of sensors while still meeting functional requirements in a Wireless sensor network. It is well acknowledged that clustering is an efficient way to save energy for sensor networks. In multi-hop networks clustering is very effective in reducing communications. Cluster head role rotation and duty-cycling of nodes are two effective ways to balance energy consumption. CH rotation, also called local delegation has minimum overhead thus minimizing delay in data transmission compared to the case when re-clustering is to be done globally during which period no data transmission can take place. We propose a theoretical investigation of the parameters for optimal deployment of WSN taking into account clustering and CH rotation. The optimality considered is in view of energy cost as well as network lifetime.