An Energy Efficient: RI MAC Protocol Implementation over MAC Protocol for Wireless Sensor Network

In Modern communication systems, design and development of wireless sensor network plays a very crucial role, especially for broadcast communication. This paper describes a medium access control protocol for wireless sensor networks designed for broadcast communication. The RI-MAC (Random Interference Medium Access Control) protocol uses random slot assignment in each MAC frame, along with knowledge of neighbors' transmission schedules to mitigate some of the energy wasting problems with existing MAC protocols. RI-MAC conserves energy, transmits messages fairly among the nodes in the system, and is adaptive to changes in the topology. Preliminary evaluation tests indicate that RI-MAC uses less energy than CSMA.