International Journal of Computer Network and Information Security (IJCNIS)
IJCNIS Vol. 4, No. 1, 8 Feb. 2012
Cover page and Table of Contents: PDF (size: 339KB)
Application of Erlang Formulae in Next Generation Networks
Full Text (PDF, 339KB), PP.59-66
Views: 0 Downloads: 0
Author(s)
Erik Chromy
1,*
Tibor Misuth
1
Adam Weber
1
Index Terms
Erlang B Formula, extended Erlang B Formula, Erlang C formula, Next Generation Networks, QoS, Contact Center
Abstract
The paper deals with the possibility of the Erlang B and Erlang C formula utilization in Next Generation Networks (NGN). Based on the common properties of synchronous and asynchronous networks it is possible the utilization of Erlang formulas also for asynchronous networks. It is possible to describe traffic in NGN networks by calculation of following parameters – loss, link utilization and bandwidth. The second part of this paper deals with the possibility of application of Erlang B formula in contact center. Contact center is one of the many examples of the NGN networks. By application of Erlang B formula in contact center environment it is possible to monitor following important parameters - number of agents, probability of call blocking, utilization of agents and mean number of calls in the system.
Cite This Paper
Erik Chromy, Tibor Misuth,Adam Weber, "Application of Erlang Formulae in Next Generation Networks", International Journal of Computer Network and Information Security(IJCNIS), vol.4, no.1, pp.59-66, 2012. DOI:10.5815/ijcnis.2012.01.08
Reference
[1]Muller N. J. Desktop Encyclopedia of Telecommunications. Edition: 3, McGraw-Hill Professional, 2002, ISBN 0071381481.
[2]Puzmanova R. Modern communication networks from A to Z. Computer Press Brno, 2006, ISBN 80-2511278-0.
[3]Krause M., TIPTON H. F. Information Security Management, Handbook. Edition: 4, CRC Press, 1999, ISBN 0849308003.
[4]Taylor T. QoS in Packet Network. Springer, 2004, ISBN 038723389.
[5]Voznak M. Advanced Implementation of IP Telephony at Czech universities. WSEAS TRANSACTIONS on COMPUTERS, Issue 1, Volume 9, September 2010, ISSN: 1109-2750, pp. 679-693.
[6]Klika O. Theory and experience of operation load in telecommunications. Praha, 1973, OS-31-047-73.
[7]Cooper R. B. Introduction to Queueing Theory. 2nd Edition, Elsevier, 1980, ISBN 0444010653.
[8]Kavacky M., Baronak I. Evaluation of Two Statistical CAC Methods for Variable Bit Rate Traffic Sources. In: Journal of Electrical Engineering, Vol. 59, No. 4 (2008), ISSN 1335-3632, pp. 178-186.
[9]Kyrbashov B., Baronak I., Kovacik M., Janata V. Evaluation and Investigation of the Delay in VoIP Networks. In: Radioengineering, Vol. 20, No. 2 (2011), ISSN 1210-2512, pp. 540-547.
[10]Kavacky M. Traffic Description and Quality of Service. In: RTT 2010. Research in Telecommunication Technology: 12th International Conference. Velké Losiny, Czech Republic, 8.-10.9.2010. Ostrava: VŠB Technical University of Ostrava, 2010, ISBN 978-80-248-2261-7.
[11]Klucik S., Tisovsky A. Queueing Systems in Multimedia Networks. Elektrorevue, ISSN 1213-1539. vol. 15, 2010, art. no 99.
[12]Mrajca M., Brabec Z. New Generation Networks Management. In: RTT 2008, Bratislava STU, ISBN 978-80-227-2939-0.
[13]Freeman R. Fundamentals of Telecommunications. Second Edition. John Wiley & Sons, Inc. Hoboken, New Jersey, IEEE Press, 2005, ISBN 0-471-71045-8.
[14]Westbay Engineers Ltd. The Extended Erlang B Traffic Model: Westbay Engineers Ltd., 2008. <http://www.erlang.com/calculatormanual/index.html?the_extended_erlang_b_traffic_model.htm>.
[15]Qiao S. A Robust and Efficient Algorithm for Evaluating Erlang B Formula. [online]. Hamilton, Ontario Canada, McMaster University, 17.10.1998. Available on Internet: <http://www.cas.mcmaster.ca/~qiao/publications/erlang.pdf>
[16]Uncovsky L. Stochastické modely operačnej analýzy. 1. ed. Bratislava : ALFA, 1980. 416 p. ISBN 63-557-80. (in Slovak)
[17]Yokota M. Erlang. [online]. 12.12.2007. Available on Internet:<http://hp.vector.co.jp/authors/VA002244/erlang.htm>.