**5.2.3.1 Packet delivery fraction**

In the figure 7, x - axis represents the varying node speed and y- axis represents the packet delivery fraction. From figure 7, it is shown that the speed of the node has less impact on DSDV protocol when node speed is up to 40. The PDF losses after node speed 40 because of the link breakage due to mobility. The node speed does not affect the PDF of the protocols AODV and A-AODV. Generally the PDF decreases in AODV protocol than other two protocols because the data transfer process need a new route discovery due to mobility . The PDF is increased in A-AODV protocol because of the multiple route-reply scheme.

Fig. 7. Packet Delivery Fraction in Scenario 3

#### **5.2.3.2 End-to-end delay**

In the figure 8, x-axis represents the varying node speed and y-axis represents the end to end delay in mille seconds. Based on Figure 8, for varying speed, A-AODV produces less End to End Delay, but the performance of DSDV is slightly better than AODV.

Fig. 8. End-to-End Delay in Scenario 3

The End-to End Delay is lowed in DSDV than AODV because of the proactive nature of the protocol. While considering End-to-End Delay in various scenarios A-AODV protocol works better than other two protocols because of the flooding scheme in route reply. The flooding scheme with broadcast ID in the route reply make the delay lower than the other two protocols.

#### **5.2.3.3 Throughput**

In the figure 9, x- axis represents the varying node speed and y- axis represents the throughput.

Fig. 9. Throughput in Scenario 3

The performance of A-AODV is almost same in various speeds . The throughput is maintained for various node speeds. AODV protocol has the continuous throughput decrease as node speed increases after the node speed 30 because the route table cannot be maintained to the speed of the node. In the case of DSDV protocol the proactive nature of the protocol produces the decreased throughput as node speed increases.
