Artificial Cobweb Intelligent Routing Algorithm for Low-Voltage Power Line Communication - Intelligent Computing for Sustainable Energy and Environment - page 369

subnet 3

subnet 1 subnet 2

subnet_1_2 subnet_1_3 subnet_2_2 subnet_2_3 subnet_3_2 subnet_3_3

subnet_0

subnet_1_1 subnet_1_0 subnet_1_4 subnet_2_1 subnet_2_0 subnet_2_4 subnet_3_1 subnet_3_0 subnet_3_4

subnet_2_6 subnet_2_5 subnet_3_6 subnet_3_5

subnet_1_6 subnet_1_5

Fig. 8. Simulation model

subnet 2 0-subnet 1 0 and subnet 1 0-subnet 0areshowninFig.9(a).Thefigure
shows that the throughput simulation results of every link are identical to the-
oretical calculation. According to the formula (2), the calculated transmission
delay of each link is 0.07s, 0.14s, 0.21s. The simulation result of data transmis-
sion delay between each link is shown in Fig.9(b). The delay simulation results
are also identical to theoretical calculation.

600

0.3

subnet__1__0−subnet__0

subnet__1__0−subnet__0

500

0.25

subnet__2__0−subnet__1__0

400

0.2

subnet__2__0−subnet__1__0

300 0.15

subnet__3__0−subnet__2__0

subnet__3__0−subnet__2__0

200

0.1

100 0.05

0 1000 2000 3000 0 1000 2000 3000

Simulation Time(s) Simulation Time(s)

(a) Throughput between central nodes (b) Delay between central nodes

Fig. 9. Simulation of links between center nodes

The simulation results indicate that in the aspects of throughput and trans-
mission delay, the networking structure can guarantee the QoS of power line
communication.
Figure 10(a) shows the simulation result of the throughput of link subnet 2 2-
subnet 2 1 before and after routing reconstruction. While node subnet 2 2op-
erates normally, this link has no data throughput, after routing reconstruction
at the time of 1200s, throughput of the link increases sharply and eventually
stabilizes at 24 bits/s. And it is agreed with the throughput generated by
node subnet 2 2, so that it reveals that this link undertakes the throughput
of subnet 2 2 after routing reconstruction. Similarly, Figure 10(b) shows that,
link subnet 2 1-subnet 2 0 undertakes the throughput of subnet 2 2sothatits
throughput increases sharply after 1200s and eventually stabilizes at about 50
bits/s, the sum of throughput of node subnet 2 2 and subnet 2 1. Figure 10(c)