Page 81 - sjsi

Research Article: Althalji et al 81

40

30
PDR % 20
10
0
1 root 2 roots 3 roots

num of roots

Fig. 9: Packet Delivery Ratio vs num of roots
Fig.10: Average End to End delay vs num of roots
By comparing the MARPL simulation results
with the proposed protocol, we notice the FL-RPL [13] is modified the RPL using fuzzy logic
with several parameters. The simulation was
superiority of the proposed protocol due to its
implemented with an area of 10000^m2, 9
ability to support mobile nodes by making the
parent and child nodes of the mobile node mobile nodes and (15,20,25,30) fixed nodes,
the simulation results showed that the value of
aware of its movement via the proposed control
the packet delivery rate is close when
message (HERE). MARPL increases the ratio of
sending control messages, which causes more comparing the proposed protocol with the FL-
RPL protocol, where the proposed protocol
overhead on the network and increases
exceeded 3% (Figure 11). The proposed
collisions because it sends DIO messages to all
neighbors, while the HERE control messages are protocol outperforms FL-RPL through reducing
the delay by about half because the FL-RPL
sent only to the parent and child nodes that
protocol performs many operations every time
need this information . Average end-to-end
delay: The result shown in Figure 10. a node receives a DIO message, (see Figure 12).
The routing metrics are given as input of fuzzy
Considering that MARPL relied on calculating
the value of node availability through the RSSI, inference system to obtain a confidence score
of the node and recalculate the mobility time.
this leads to recalculating the value for all nodes
Therefore, these steps cause more delay and an
every time . In the proposed protocol, even if
the node moves and changes its location, it increase in power consumption. Figure 13
shows that the proposed protocol reduced
makes sure that the parent node is still within
energy consumption, especially when the
its radio range in order to reduce repeating the
search process for a new parent node, and that number of mobile nodes was more than fixed
ones .
reduces the power consumption, collision, and
delay.

Fig. 11: Packet Delivery Ratio vs num of fixed nodes

SJSI – 2023: VOLUME 1-1