Consider two types of call arrivals to a cell in a mobile telephone network: new calls that originate in a cell and calls that are handed over from neighboring cells. It is desirable to give preference to handover calls over new calls. For this reason, some of the channels in the cell are reserved for handover calls, while the rest of the channels are available to both types of calls. = = Suppose that all calls arrive in a cell according to a Poisson process with rate Anc 125 calls per hour for new calls, and ho 50 calls per hour for handover calls. The cell has a capacity of 10 channels. Each call occupies 1 channel and the call time has an exponential distribution with mean two minutes. Suppose that no channels are reserved for handover calls. (a) Calculate the blocking probability in the cell and find the average number of channels used. (b) When a call has to wait, find its average waiting time.
Consider two types of call arrivals to a cell in a mobile telephone network: new calls that originate in a cell and calls that are handed over from neighboring cells. It is desirable to give preference to handover calls over new calls. For this reason, some of the channels in the cell are reserved for handover calls, while the rest of the channels are available to both types of calls. = = Suppose that all calls arrive in a cell according to a Poisson process with rate Anc 125 calls per hour for new calls, and ho 50 calls per hour for handover calls. The cell has a capacity of 10 channels. Each call occupies 1 channel and the call time has an exponential distribution with mean two minutes. Suppose that no channels are reserved for handover calls. (a) Calculate the blocking probability in the cell and find the average number of channels used. (b) When a call has to wait, find its average waiting time.
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.6: Summarizing Categorical Data
Problem 27PPS
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Transcribed Image Text:Consider two types of call arrivals to a cell in a mobile telephone network: new
calls that originate in a cell and calls that are handed over from neighboring cells.
It is desirable to give preference to handover calls over new calls. For this reason,
some of the channels in the cell are reserved for handover calls, while the rest of the
channels are available to both types of calls.
=
=
Suppose that all calls arrive in a cell according to a Poisson process with rate
Anc 125 calls per hour for new calls, and λho 50 calls per hour for handover
calls. The cell has a capacity of 10 channels. Each call occupies 1 channel and the
call time has an exponential distribution with mean two minutes.
Suppose that no channels are reserved for handover calls.
(a) Calculate the blocking probability in the cell and find the average number of
channels used.
(b) When a call has to wait, find its average waiting time.
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