Inlämning av Examensarbete / Submission of Thesis

Zafar Iqbal Awan; Abdul Azim MEE08:36, pp. 63. TEK/avd. för telekommunikationssystem, 2008.

The work

Författare / Author: Zafar Iqbal Awan, Abdul Azim,
Titel / Title: Network Emulation, Pattern Based Traffic Shaping and KauNET Evaluation
Abstrakt Abstract:

Quality of Service is major factor for a successful business in modern and future network services. A minimum level of services is assured indulging quality of Experience for modern real time communication introducing user satisfaction with perceived service quality. Traffic engineering can be applied to provide better services to maintain or enhance user satisfaction through reactive and preventive traffic control mechanisms. Preventive traffic control can be more effective to manage the network resources through admission control, scheduling, policing and traffic shaping mechanisms maintaining a minimum level before it get worse and affect user perception. Accuracy, dynamicity, uniformity and reproducibility are objectives of vast research in network traffic.

Real time tests, simulation and network emulation are applied to test uniformity, accuracy, reproducibility and dynamicity. Network Emulation is performed over experimental network to test real time application, protocol and traffic parameters. DummyNet is a network emulator and traffic shaper which allows nondeterministic placement of packet losses, delays and bandwidth changes. KauNet shaper is a network emulator which creates traffic patterns and applies these patterns for exact deterministic placement of bit-errors, packet losses, delay changes and bandwidth changes. An evaluation of KauNet with different patterns for packet losses, delay changes and bandwidth changes on emulated environment is part of this work.

The main motivation for this work is to check the possibility to delay and drop the packets of a transfer/session in the same way as it has happened before (during the observation period). This goal is achieved to some extent using KauNet but some issues with pattern repetitions are still needed to be solved to get better results. The idea of history and trace-based traffic shaping using KauNet is given to make this possibility a reality.

Ämnesord / Subject: Telekommunikation - Telecommunications
Datavetenskap - Computer Science\Networks and Communications
Nyckelord / Keywords: KauNet shaper , KauNet Emulator, KauNet Evaluation, Traffic Shaping, KauNet Performace Evaluation, Pattern Based Traffic Shaping, Trace-based Traffic Shaping, History-based Traffic Shaping, Network Emulation, Quality of Service, Quality of Experience

Publication info

Dokument id / Document id:
Program:/ Programme Magisterprogram i Elektroteknik / Master of Science in Electrical Engineering
Registreringsdatum / Date of registration: 12/31/2008
Uppsatstyp / Type of thesis: Masterarbete/Master's Thesis (120 credits)


Handledare / Supervisor: Dr. Markus Fiedler
Organisation / Organisation: Blekinge Institute of Technology
Institution / School: TEK/avd. för telekommunikationssystem
S-371 41 Karlskrona
+46 455 38 50 00

Files & Access

Bifogad uppsats fil(er) / Files attached: azim_zafar_thesis_report.pdf (528 kB, öppnas i nytt fönster)