Wireless system for improving performance and prolonging battery lifetime of node by energy harvesting

A method for improving performance and prolonging battery lifetime of a node by energy harvesting in wireless system, the method comprising:

• providing an RF signal by a source node;
• receiving the RF signal from the source node by a destination node;
• configuring a relay in such a way so that the relay communicates with the source node and the destination node, and configuring the source node in such a way such that the source node communicates with the destination node via the relay for a Time “T”, the Time “T” having a first signaling phase, a second signaling phase and a third signaling phase, and the relay comprising:
• an energy harvesting unit, an information processing unit, a battery control unit, and a central controlling unit;
• via the energy harvesting unit, harvesting energy from the source node RF signal and storing the harvested energy in a storage element in the first signaling phase by an energy harvesting unit;
• via the information processing unit, decoding the RF signal from the source node by an information processing unit in the second signaling phase;
• via the battery control unit, controlling an amount of energy to be extracted from a battery by a battery control unit;
• and
• via the central controlling unit, optimizing a fraction of the time “T” apportioned to the first signaling phase for optimizing harvested energy by the central controlling unit, the central controlling unit in communication with the energy harvesting unit, the information processing unit, and the battery control unit for transferring the decoded RF signal from the information processing unit to the destination node by augmenting (i) the harvested energy from the energy harvesting unit with (ii) the battery energy from the battery control unit in the third signaling phase.