Abstract
Mobile ad-hoc networks (MANET) are collections of battery powered wireless mobile nodes dynamically forming a temporary network without the use of any pre-defined network infrastructure or centralized administration. Nodes die out early due to limited battery power which ultimately affects the network's lifetime. Different actions of the nodes like transmitting, receiving, overhearing consume available energy. In order to increase the system's life-time, energy has to be conserved. Our proposed protocol improves on MAC by using power control for the RTS, CTS and DATA frame transmissions; remarkably reducing energy consumption and increase network throughput and lifetime. We follow a slow start principle for the RTS frame transmission power instead of keeping them at constant maximum transmission power and by using RSS the minimum required transmit power is used for DATA-ACK transmissions. Our scheme also allows for more simultaneous collision-free transmissions to take place which improves the overall performance of the network.
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