Fig. 5 shows the packet delivery ratio with different traffic density for SMAC and RI-MAC protocols. For SMAC packet
delivery ratio remains almost constant for high density traffic, where as for low density traffic the delivery ratio increases. In
RI-MAC the delivery ratio increases as the traffic density decreases. For low density traffic, differences in packet delivery ratio are small for SMAC and RI-MAC, but RI-MAC outperforms SMAC at high traffic density.