January 2023
Intermediate to advanced
272 pages
5h 3m
English
Content preview from Queues Applied to Telecoms
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13Chapter 5 Exercises
EXERCISE 5.1.– On the telephone
The total traffic corresponding to the 10 users making 10-minute phone calls is as follows:
- – for an observation time of 10 minutes:
; - – for an observation time of 30 minutes:
; - – for an observation time of 1 hour:
.
The traffic per user for an observation time of one hour is equal to 
Erl, or 167 mErl.
Now, for 100 users making one-minute phone calls:
- – for an observation time of 10 minutes:
; - – for an observation time of 30 minutes:
; - – for an observation time of 1 hour:
.
The traffic per user for an observation time of one hour is equal to 
Erl, or 16.7 mErl.
These two cases have the same traffic values, whatever the observation ...
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