Efficient estimation of call blocking probabilities in cellular mobile telephony networks with customer retrials

2001 ◽  
Vol 19 (2) ◽  
pp. 332-346 ◽  
Author(s):  
M.A. Marsan ◽  
G. de Carolis ◽  
E. Leonardi ◽  
R. Lo Cigno ◽  
M. Meo
Keyword(s):  
Efficient Estimation ◽  
Mobile Telephony ◽  
Call Blocking ◽  
Blocking Probabilities ◽  
Call Blocking Probabilities ◽  
Cellular Mobile

Call blocking probabilities in a two‐link multirate loss system for Poisson traffic

IET Networks ◽  
2018 ◽  
Vol 7 (4) ◽  
pp. 233-241 ◽  
Author(s):  
Stefanos G. Sagkriotis ◽  
Spyros K. Pantelis ◽  
Ioannis D. Moscholios ◽  
Vassilios G. Vassilakis
Keyword(s):  
Loss System ◽  
Call Blocking ◽  
Blocking Probabilities ◽  
Call Blocking Probabilities

scholarly journals Call-level Analysis of a Two-Link Multirate Loss Model based on a Convolution Algorithm

2018 ◽  
Vol 1 ◽  
pp. 3-10
Author(s):  
Stefanos G. Sagkriotis ◽  
Spyros K. Pantelis ◽  
Ioannis D. Moscholios ◽  
Vassilios G. Vassilakis
Keyword(s):  
Form Solution ◽  
The Other ◽  
Bandwidth Sharing ◽  
Call Blocking ◽  
Loss Model ◽  
Available Bandwidth ◽  
Blocking Probabilities ◽  
Convolution Algorithm ◽  
Support Threshold ◽  
Call Blocking Probabilities

We consider a two-link system that accommodates Poisson arriving calls from different service-classes and propose a multirate teletraffic loss model for its analysis. Each link has two thresholds, which refer to the number of in-service calls in the link. The lowest threshold, named support threshold, defines up to which point the link can support calls offloaded from the other link. The highest threshold, named offloading threshold, defines the point where the link starts offloading calls to the other link. The adopted bandwidth sharing policy is the complete sharing policy, in which a call can be accepted in a link if there exist enough available bandwidth units. The model does not have a product form solution for the steady state probabilities. However, we propose approximate formulas, based on a convolution algorithm, for the calculation of call blocking probabilities. The accuracy of the formulas is verified through simulation and found to be quite satisfactory.

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