Modeling and Dimensioning of Networks

Přednášející:

Petr Hampl (gar.), František Křížovský (gar.)

Cvičící:

Petr Hampl (gar.), František Křížovský (gar.)

Předmět zajišťuje:

katedra telekomunikační techniky

Anotace:

The aim of the course is to present an overlook of dimensioning of telecommunications net-works on the basis of results of the queuing theory (QT). Introduce possibilities of simulation and modeling networks both from the point of view of grade of service GoS and quality of service QoS as well. Results of the QT are applied on different service systems and telecommunication networks deploying and operating at time being. Theoretical knowledge about models of service systems can be utilized for dimensioning of different service systems in real life - not only on the telecommunications one.

Požadavky:

For successful study of the course are necessary basic knowledge of the theory probability,stochastic processes and statistic.

The Examination:

-has two parts - written and oral,

-the written part consists of ten randomly selected questions, for each student,

-the oral part is focused on the discussion about the written preparation (if the written answer is not intelligible),

-to pass the exam, it is necessary to successfully answer at least six questions out of ten (classification E).

Award grade requirements:

1) 100% presence in seminars and laboratories courses. Absence is necessary to ex-cuse (individually, by: phone, e-mail, SMS). The deadline is 72 hours. In the case of excuse missing two numerial examples will be given for numerical solution per seminar, solution of which must be submitted until at the date of assessement (21.12.2011).

2) Hand in and defending errorless project and the numerical results of examples.

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Osnova přednášek:

1. Telecommunication networks (TN), dimensioning. Analysis of the task. Mathematical model of a service system, Kendall?s notation.

2. Flow of demands, characteristics, mathematical specification, influence of flow on quality of service. Poisson?s flow, nature and character.

3. Optimization of topology of TN. Forecast methods, regression functions

4. Service system and its parameters.

5. Quality of services (QoS, GoS, NP). Dependability, availability and reliability of item and network.

6. Application of queuing theory on dimensioning of TN. Types of SS.

7. Models M/G/N/0, specification, parameters GoS. Dimensioning.

8. Models M/M/N/R, specification, parameters GoS. Dimensioning.

9. Models G/M/N, M/G/N and G/G/N. Applications in UMTS networks.

10.Summary of the theory of loss and waiting SS for practical applications.

11.Modeling of SS and TN. Matlab, SimEvents.

12.Priority SS - utilization in practice (packet networks, PQ, CQ, LLQ, FQ, WFQ).

13.QoS control in IP networks, classification and marking of data flows.

14.Summary of the course.

Osnova cvičení:

1. Free time.

2. Free time.

3. An introduction to seminars, input information on project.

4. Free time.

5. Free time.

6. Free time.

7. Free time.

8. Free time.

9. Loss SS - dimensioning - models M/G/N/0.

10. Application of G/M/N, M/G/N and G/G/N models in TN networks. Problems with dimensioning ISDN, UMTS and Internet - examples.

11. Lab.: Dimensioning nonpriority SS with waiting, application of M/M/N/R model using MATLAB.

12. Lab.: An introduction to SimEvents simulator. Simulation of M/M/N/R SS.

13. Lab.: Simulation of TN. Influence of QD (FIFO, WFQ, CQ, PQ) on QoS in packet network.

14. Applications of generalized Erlang?s model for dimensioning. Assessement.

Cíle studia:

The aim of the course is to present an overlook of dimensioning of telecommunications net-works on the basis of results of the queuing theory (QT). Acquired knowledge applied in individual project dimensioning of data network.

Studijní materiály:

Gross, D., Harris, C., M. Fundamentals of queuing theory. Third Edition. New York, London: J. Wiley and Sons, 1998. 439 p. ISBN 0-471-17083-6

http://www.tele.dtu.dk/teletraffic Villy B.Iversen. Teletraffic Engineering Handbook. Ge-neva: ITC in cooperation with ITU-D SG2, 2005. 328 p.

Amir Ranjbar. CCNP ONT Official Exam Certification Guide. Cisco Press; Har/Cdr edition, 2007. 408 p. ISBN-10: 1587201763, ISBN-13: 978-1587201769.

Poznámka:

Rozvrh na zimní semestr 2011/2012:

	06:00–08:0008:00–10:0010:00–12:0012:00–14:0014:00–16:0016:00–18:0018:00–20:0020:00–22:0022:00–24:00
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Út	místnost T2:B3-710 Křížovský F. Hampl P. 08:15–10:45 (přednášková par. 1) Dejvice Laboratoř K332místnost T2:B3-710 Hampl P. Křížovský F. 11:00–12:30 LICHÝ TÝDEN (přednášková par. 1 paralelka 101) Dejvice Laboratoř K332 místnost T2:B3-710 Hampl P. Křížovský F. 11:00–12:30 SUDÝ TÝDEN (přednášková par. 1 paralelka 102) Dejvice Laboratoř K332
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Rozvrh na letní semestr 2011/2012:

Rozvrh není připraven

Předmět je součástí následujících studijních plánů:

• Communications, Multimedia and Electronics - Networks of Electronic Communication (povinný předmět oboru)