What is the maximum system capacity (total and per channel) in Erlangs when providing a 2% blocking probability with 4 channels, with 20 channels, with 40 channels? (b) How many users can be supported with 40 channels at 2% blocking? Assume H = 105 s, λ = 1 call/hour. (c) Using the traffic intensity per channel calculated in part (a), find the grade of service in a lost call delayed system for the case of delays being greater than 20 seconds. Assume that H = 105 s, and determine the GOS for 4 channels, for 20 channels, for 40 channels. (d) Comparing part (a) and part (c), does a lost call delayed system with a 20 second queue perform better than a system that clears blocked calls?
What is the maximum system capacity (total and per channel) in Erlangs when providing a 2% blocking probability with 4 channels, with 20 channels, with 40 channels? (b) How many users can be supported with 40 channels at 2% blocking? Assume H = 105 s, λ = 1 call/hour. (c) Using the traffic intensity per channel calculated in part (a), find the grade of service in a lost call delayed system for the case of delays being greater than 20 seconds. Assume that H = 105 s, and determine the GOS for 4 channels, for 20 channels, for 40 channels. (d) Comparing part (a) and part (c), does a lost call delayed system with a 20 second queue perform better than a system that clears blocked calls?
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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What is the maximum system capacity (total and per channel) in Erlangs when providing a
2% blocking probability with 4 channels, with 20 channels, with 40 channels?
(b) How many users can be supported with 40 channels at 2% blocking? Assume H = 105 s, λ = 1
call/hour.
(c) Using the traffic intensity per channel calculated in part (a), find the grade of service in a lost
call delayed system for the case of delays being greater than 20 seconds. Assume that H = 105 s,
and determine the GOS for 4 channels, for 20 channels, for 40 channels.
(d) Comparing part (a) and part (c), does a lost call delayed system with a 20 second queue
perform better than a system that clears blocked calls?
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