Ameliorate lifetime of wireless sensor networks

Wireless sensor networks (WSNs) are collection of sensor nodes that unite together to monitor an environment or a system. Due to abundant workload on node near the sink makes faster energy depletion than other nodes. Due to this, lifetime of WSNs to some amount, is resolved by the power consumption between sensor node & sink. Hence, CSMA/SF is used to reduce power consumption for sensing nodes near the sink. CSMA/SF is addition of priority to CSMA. Sensor node have strength to sense and send sense data to base station. Clustering is a key technique used to enhance energy consumption in WSNs. This Paper use residual energy of sensor node for selection of Cluster head to gather data from cluster member and ahead data to base station using CSMA/SF Mac protocol to ameliorate lifetime of wireless sensor network using Network Simulator 3.