NDLI: Information exchange surrogates for approximation of blocking probabilities in overflow loss systems

Content Provider	IEEE Xplore Digital Library
Author	Wong, E.W.M. Jun Guo Moran, B. Zukerman, M.
Copyright Year	2013
Description	Author affiliation: Dept. of Electron. Eng., City Univ. of Hong Kong, Hong Kong, China (Wong, E.W.M.; Jun Guo; Zukerman, M.) \|\| Defence Sci. Inst., Univ. of Melbourne, Melbourne, VIC, Australia (Moran, B.)
Abstract	Overflow loss systems are an important class of teletraffic models. Evaluation of blocking probabilities in such systems involving mutual overflow effects is a difficult problem. In the literature, decoupling a given system into independent subsystems is typically regarded as a scalable, though non-robust, approach to the problem. This paper presents a new method that is based on a radically different idea from that of the conventional approach. Firstly a surrogate model that, in a systematic way, approximately captures the state dependencies due to the overflow model is designed. Secondly it is observed that approximation of the blocking probability of the surrogate model provides a good approximation to the blocking probability in the original model. We introduce important concepts underpinning this surrogate-based approximation method, and demonstrate its effectiveness by applying it to an overflow model that incorporates mutual overflow effects common to various applications of overflow loss systems. Unlike the conventional approach that requires a fixed-point solution of the blocking probability with no guarantee of the convergence and uniqueness, our new method provides a unique solution in a fixed number of iterations. Extensive and statistically reliable experiments demonstrate that the new method yields significantly and consistently better results compared to the conventional approach, improving the accuracy by orders of magnitude in many instances and yet requiring less computational effort.
Starting Page	1
Ending Page	9
File Size	520201
Page Count	9
File Format	PDF
ISBN	9780983628378
DOI	10.1109/ITC.2013.6662932
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-09-10
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Computational modeling Approximation algorithms Robustness Servers Approximation methods Mathematical model Information exchange
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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