We consider a wireless network with following data:
Total population: 200,000
Subscriber penetration: 25%
Average call holding time for mobile-to-land and land-to-mobile subscribers:
100 seconds
Average calls/hour for mobile-to-land and land-to-mobile subscribers:
3 calls/hour
Average call holding time for mobile-to-mobile subscribers: 80 seconds
Average calls/hour for mobile-to-mobile subscribers: 4 calls/hour
Traffi c distribution is:
Mobile-to-land: 50%
Land-to-mobile: 40%
Mobile-to-mobile: 10%
Calculate total traffic in Erlangs. If each MSC can handle 1800 Erlangs traffic,
how many MSCs are required to handle the total traffic?