A TDMA based energy efficient unequal clustering protocol for wireless sensor network using PSO

Abstract

To increase the network lifetime and to save energy clustering method can be used as in most multi hop networks Cluster top being near to primary stations use more energy because of elevated inter cluster communicate traffic load resulting in Hop spot difficulty. By select an Extra CH named as Surrogate Cluster Head (SCH) in order to restore network connectivity which is interrupted because of failure of MCH, this method uses TDMA to allot time slots.