Source of Traffic

SIMULATION ENVIRONMENT

Source of Traffic	System	B-Subscriber	Monitoring
1. Traffic Model Limited number of source (user defined) Time dependent, can vary the traffic profile 2. Categories Business / Residential (Differentiated by arrival rates and holding time) Different bandwidth services (Videphone/Telephone) 3. Human behavior Repeated calls Repetition probabilities (Depending on the rank of attempt) Dialling delay Dialing error A-waiting time when B-busy A-waiting time when B-absent/No answer Repetition intervals (Depending on the rank of attempt)	Dial queue Dial receivers Call setup queue Call setup processors Trunk Capacity Trunk reservation parameter	1. Traffic Model Same as A-Subs 2. Categories Same as A-subs 3. Human Behavior B-absent probability B-no answer probability B-busy B-answering delay	1. Number of call attempts 2. Number of repeated calls 1st attempt 2nd attempt 3rd attempt 3. Number of calls due to B-busy due to server busy due to B-absent 4. Number of calls in which A-giveup 5. Number of B-answered calls 6. Average call setup delay 7. Average dial delay 8. Number in setup queue 9. Number in dial queue 10. Separate measurement process offline analysis

Study and analysis based on this simulation environment

1. System behavior

2. Effect of switch processing delay on the blocking of the link

3. Trunk utilization and blocking of multislot calls in ISDN under realistic traffic