Energy Efficient Cooperative Approach For Multichannel Mac Protocol

Media access control is an essential part of wireless communication. To achieve higher communication throughput multi-channel MAC has been studied. Adhoc wireless network’s performance is always measured corresponding to the power consumption of the nodes. The overall network connectivity depends on the energy of the nodes. Researchers have proposed many energy efficient MAC protocols to resolve this problem. Altruistic protocol uses the concept of distributed information sharing to reduce power consumption and at the same time improve the throughput. Distributed Information Sharing(DISH) is a new cooperative approach to design multi-channel MAC protocols. It aids nodes in their decision making process by sharing information through neighboring nodes. It share control information with each other so that nodes can make decisions during communication. In a multi-channel network, DISH avoids collisions by notification from neighboring nodes about channel conflict and deaf terminal problem. Energy efficient strategy altruistic DISH is used. It uses multi-hop communication. Data retransmission is avoided with the assist of intelligent node. Priority is given to the nodes if it chooses the busy receiver. Altruistic protocol is compared with In-situ DISH, and find that altruistic protocol significantly outperforms. It conserves energy without compromising the throughput performance. Through simulations it shows that altruistic protocol conserves better energy compared to other. The experimental results confirm the viability of altruistic protocol and the idea of DISH. Hence by using DISH energy efficiency for cooperative multi-channel MAC is achieved.