In fact, the ???Highest Bandwidth??? performs virtually on par to the ???Estimation
based??? case for all our experiments, even though the latter requires almost no network
feedback and, as shown in Table 5.1, has the lowest complexity. This is expected since the
???Highest Bandwidth??? approach provides less intelligent decisions when most of the links
have low effective throughput. Finally, a comparison of the results for the different
topologies reveals that, as expected, the higher the connectivity, the better the average
performance of all methods. Nevertheless, this comes at a higher allocation of resources in
the multi-hop mesh topology and it additionally has higher complexity and requires more
feedback for the condition of all the links, as demonstrated in Table 5.1.
Medium Bandwidth case
0
5
10
15
20
25
30
35
40
45
1 2 3 4 5 6 7 8
distortion class number
PLR (%) _
End-to-end
ETX optimization
Highest Bandwidth
Localized
Estimation based
Low Bandwidth case
0
10
20
30
40
50
60
70
1 2 3 4 5 6 7 8
distortion class number
PLR (%) _
End-to-end
ETX optimization
Highest Bandwidth
Localized
Estimation based
Figure 5.
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