Information Technology Reference
In-Depth Information
shows the simulation result of throughput of link subnet 3 0 - subnet 2 0be-
fore and after routing reconstruction when subnet 3 2 become blind node. It is
clear from the figure that the throughput of this link is approximately constant
after routing reconstruction. And it demonstrates that this kind of routing re-
construction method can well solve the problem of blind node, it improves the
survivability of the system and it is somehow practically operational.
50
100
after routing
before routing
after routing
before routing
40
80
30
60
20
40
10
20
0
0
0
1000
2000
3000
0
1000
2000
3000
Simulation Time(s)
Simulation Time(s)
(a) Throughput
of
subnet 2 2-
(b) Throughput
of
subnet 2 1-
subnet 2 1
subnet 2 0
240
after routing
before routing
220
200
180
160
140
120
100
0
1000
2000
3000
Simulation Time(s)
(c) Throughput
of
subnet 3 0-
subnet 2 0
Fig. 10.
Simulation results of routing reconstruction
Figure 11(a) is the simulation comparative results of channel conflict between
ACRA and CSP. Vertical lines represent the occurrence of channel conflict at
this moment. It can be seen from the figure that within the simulation time,
conflict caused by ACRA (blue lines) is far less than that caused by CSP (green
lines). ACRA divides the whole large network into several small networks, nodes
of each one send messages to central node at some certain timing. It reduces
the nodes in the channel at one moment to some extent, so that it reduces the
conflict sharply, and improves the channel utilization shown in Figure 11(b).
Search WWH ::
Custom Search