Summary

IEICE Information and Communication Technology Forum

2017

Session Number:SESSION04

Session:

Number:SESSION04_2

Evaluation of Convolution Algorithms in the Erlang Multirate Loss Model under the Bandwidth Reservation Policy

Stefanos Sagkriotis,  Ioannis Moscholios,  

pp.-

Publication Date:2017/10/1

Online ISSN:2188-5079

DOI:10.34385/proc.50.SESSION04_2

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Summary:
In this paper, we study a single link that accommodates Poisson arriving calls of different service-classes with different bandwidth requirements. The link is modelled as a loss system while the call admission mechanism is based on the Bandwidth Reservation (BR) policy. We name this model Erlang Multirate Loss Model (EMLM) under the BR policy (EMLM/BR). The BR policy achieves Call Blocking Probabilities (CBP) equalization among calls of different service-classes by reserving bandwidth units in favor of calls of certain service-classes. The existence of the BR policy in the EMLM/BR destroys reversibility in the corresponding Markov chains and therefore the steady state probabilities cannot be described by a product form solution. To determine CBP, we study and evaluate two convolution-based teletraffic loss models that exist in the literature. Our study shows that both algorithms provide CBP results of decent accuracy when compared to the exact CBP results.