Fig. 10 depicts the number of control packets per data packet needed to perform the routing work
for Optimized-AODV, AODV and DSDV. Bits used for routing, is counted because the different
routing protocols generate the routing overhead in very different ways. In the case of very high
mobility it is obvious that Optimized-AODV creates the least overhead compared with AODV and
DSDV. With high node mobility, route failure occurs more frequently, and AODV will causeflooding of large number of route finding packets, while the number of routing packets in
Optimized-AODV is independent of node mobility. With less mobility, the performance of
Optimized-AODV still remains stable and the overhead of AODV is slightly less than Optimized-
AODV. DSDV shows a very high difference in comparison to the other two protocols. In the case
of high-density as shown in Fig. 11 over all routing over heads increases. Here Optimized-AODV
is more advantageous as it gives minimum overheads.