Abstract
This paper deals with the idea of wireless energy harvesting and energy transfer used to establish communication between devices in a wireless network. Wireless energy harvesting and transfer has proved to be very advantageous in areas like WSN in which this technique not only improve the nodes lifetime but also makes the communication eco-friendly. A protocol namely save-then-transmit is used to accomplish the communication between the nodes in which some part of the time slot is devoted for energy harvesting and transfer with remaining part used for data transfer. Two models TCM-EH-ET and TRCM-EH-ET have been considered in which the nodes have no source of energy and they only get energy by natural means i.e. they harvest energy for recharging their batteries from the environment. An energy co-operation scheme is given, parameters involved in energy harvesting and transfer, i.e. energy transfer rate and save-ratio are optimized to maximize the overall throughput of the communication network. The proposed scheme is simulated on MATLAB R2013a, simulation results shows that the throughput of system with given energy cooperation scheme are better than the scheme without energy transfer and energy transfer with half save-ratio.
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