User's Manual

3 Detailed Description
APCD-LM043-4.0 45
By increasing the number of EUMs to 300 and maintaining the same level of traffic per EUM,
the modelled performance becomes
Figure 25 Net Throughput per EUM — 300 EUMs, 60 kbyte HTTP every 2 minutes
From Figure 25, each of the 300 end users can expect a net throughput better than 300 kbps
80% of the time, and better than 750 kbps 20% of the time. Once again, you can assess
system performance based on the number of EUMs that are associated at any given time, as
is illustrated in Figure 26.
Figure 26 Associated EUMs — 300 EUMs, 60 kbyte HTTP every 2 minutes
From Figure 26,of300EUMs,eightwereassociated 12% of the time, and 14 were associated
less than 3% of the time. The amount of time 25 or more EUMs were associated was less than
0.4%.
0
0.2
0.4
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0 500 1000 1500 2000
Performance (kbps)
Probability that Performance
was Exceeded
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2
4
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14
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1
0
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1
4
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2
Associated EUMs
Frequency (%)