... equals TX energy (which is a typical situation) the optimality144 Sustainable Energy Harvesting Technologies – Past, Present and Future WSN Design for Unlimited Lifetime 13 0 0.01 0.02 0. 03 0.040.05 ... -0.779 0.2 43 -0.725 -0.062TxEnergy[100, 200] -0.140 -0.048 -0.005 0. 036 0.011 -0. 035 RxEnergy[100, 200] -0.405 0.011 0.026 0. 031 0.050 -0 .30 8Power[500, 5000] 0. 433 0.492 0. 239 -0.022 -0. 039 0.265Epoch ... retains all 134 Sustainable Energy Harvesting Technologies – Past, Present and Future WSN Design for Unlimited Lifetime 5the constraints imposed to the sensor network, allowing us to handle EH-WSNs...