Figure 6

Energy efficiency comparison with identical circuit power at each node. Energy efficiency comparison among TWRT, OWRT, and DT with identical circuit power at each node: the attenuation factor α = 4, the circuit power consumptions are set as $P_a^{ct}=P_b^{ct}=P_r^{ct}=100\text{mW},P_a^{cr}=P_b^{cr}=P_r^{cr}=100\text{mW}$, and $P_a^{ci}=P_b^{ci}=P_r^{ci}=0$, 10 mW.