Wyniki wyszukiwania dla: QOS (QUALITY OF SERVICE)

• New Tool for Examining QoS in the VToIP Service

  Publikacja

  • T. Uhl
  • K. Nowicki
  • S. Paulsen

  - Journal of Telecommunications and Information Technology - Rok 2014

  This paper is dedicated to the subject of measuring QoS in the Video Telephony over IP (VToIP) service. QoS measurement models in general and then models designed specifically for measuring QoS in the VToIP service are presented. A new numerical tool for examining the quality of VToIP video streams VToIP is described. The tool’s functionality is then put to the test in a number of analysis scenarios. The results and insights gained...

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• Determining QoS in the Video Telephony Service in an IP Environment

  Publikacja

  • C. Hoppe
  • T. Uhl
  • K. Nowicki

  - LECTURE NOTES IN COMPUTER SCIENCE - Rok 2010

  IP networks are indispensable nowadays. They are among the most efficient platforms. The constantly growing number of users and new services in these networks - the largest being the Internet - requires a good quality of any application used.Determining the QoS in real-time services is particularly important. This work is dedicated to exactly this aspect of the real-time service Video Telephony over IP (VToIP). First, the ITU-T...

• Managing Service Quality

  Czasopisma

  ISSN: 0960-4529

• Influence of the jitter buffer on the quality of service VoIP.

  Publikacja

  • S. Paulsen
  • T. Uhl
  • K. Nowicki

  - Rok 2011

  VoIP (Voice over IP) is a modern service with enormous potential for yet further growth. It uses the already available and universally implemented IP transport platform. One significant problem, however, is ensuring the Quality of Service, abbreviated QoS. This paper addresses exactly that issue. In an extensive investigation the influence of jitter buffers on QoS is being examined in depth. Two implementations, namely a passive...

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• Impact of SDN Controller’s Performance on Quality of Service

  Publikacja

  • S. Kaczmarek
  • J. A. Litka

  - IEEE Access - Rok 2024

  Software Defined Networking is a paradigm in network architecture; that is quickly becoming commonplace in modern telecommunication systems. It facilitates network customization for the requirements of different applications and simplifies the implementation of new services. Since its proposal, a significant evolution in its functionality has occurred. However, this development brought along problems of efficiency and performance,...

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• Evaluation of IEEE 802.11E extensions for quality of service

  Publikacja

  • S. Zawadzki
  • T. Janczak
  • J. Woźniak

  - Rok 2003

  Zaprezentowano założenia wersji "e" standardu 802.11, wspierającej obsługę zróżnicowanych, pod względem potrzeb QoS, strumień ruchu. Przeprowadzono różnorodne badania symulacyjne dla opcji EDCF oraz HCF tego standardu. Wskazano na mankamenty oraz zalety nowych rozwiązań.

• Quality of service in optical burst switched networks

  Publikacja

  • S. Kaczmarek
  • P. Kostecki

  - Rok 2007

  In the paper analytical models of two service differentiation schemes for optical burst switched network: extended offset time based and PPS (Preemptive Priority Scheme) are revised. Also accordance of analytical models for those schemes is studied when complete class isolation is assumed. Furthermore authors introduce an analytical model which describes an effective degree of isolation when burst switched network employs both...

• Quality of service in optical burst switched networks

  Publikacja

  • S. Kaczmarek
  • P. Kostecki

  - Theoretical and Applied Informatics - Rok 2007

  In the paper analytical models of two service differentiation schemes for optical burst switched network: extended offset time based and PPS (Preemptive Priority Scheme) are revised. Also accordance of analytical models for those schemes is studied when complete class isolation is assumed. Furthermore authors introduce an analytical model which describes an effective degree of isolation when burst switched network employs both...

• International Journal of Quality and Service Sciences

  Czasopisma

  ISSN: 1756-669X , eISSN: 1756-6703

• Quality of Service in ASON/GMPLS Network with Hierarchical Control Plane Structure

  Publikacja

  • S. Kaczmarek
  • M. Młynarczuk

  - Rok 2020

  The paper presents the problem of quality of service for hierarchical control plane structure of Automatically Switched Optical Network (ASON) utilizing Generalized Multi-Protocol Label Switching (GMPLS). The approach is implemented to control the multidomain network with required quality of service, in a use case of incomplete domain network information. The authors examine different factors, including resource reservation algorithms...

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