Fault Tolerant Wireless Sensor Mac Protocol for Efficient Collision Avoidance

In sensor networks communication by broadcast methods involves many hazards, especially collision.Several MAC layer protocols have been proposed to resolve the problem of collision namely ARBP,where the best achieved success rate is 90%. We hereby propose a MAC protocol which achieves agreater success rate (Success rate is defined as the percentage of delivered packets at the source reachingthe destination successfully) by reducing the number of collisions, but by trading off the averagepropagation delay of transmission. Our proposed protocols are also shown to be more energy efficient interms of energy dissipation per message delivery, compared to the currently existing protocol.