NEW ERA OF POWER EFFICENT BACK-OFF ALGORITHM TREND IN WIRELESS SENSOR NETWORK

Sensor nodes can be used within many deployment scenarios such as continuous sensing, event detection, event identification, location sensing, and local control of actuators for a wide range of applications such as military, environment, health, space exploration, and disaster relief. Here, we propose a scheme to save power during the execution of back off algorithm by avoiding idle listening. Existing MAC protocols for sensor networks reduces energy consumption by introducing an active/sleep duty cycle. But they can’t save energy during the execution of back off algorithm. The propose scheme could further improve the energy efficiency of senor networks MAC protocols. Analytical results show that the propose scheme has significant improvement in energy consumption over traditional back off algorithm.