Wyniki wyszukiwania dla: IP TRANSPORT PLATFORM

• TRANSPORT POSSIBILITY FOR MPEG-4/AVC- AND MPEG-2-ENCODED VIDEO DATA IN IPTV: A COMPARISON STUDY

  Publikacja

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

  - Rok 2013

  IPTV (Television over IP) is a modern service with a great potential to expand. It uses the IP transport platform, that is already in worldwide operation. At the time of writing, two techniques are used to transport the video and audio data of IPTV: MPEG-2 TS and Native RTP. The two techniques quite definitely have an influence on both quality of service (QoS) and quality of experience (QoE). This paper sets out to demonstrate...

• 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...

  Pełny tekst do pobrania w serwisie zewnętrznym

• Geo-location of the commune of an IP user

  Publikacja

  • K. Nowicki
  • T. Sikorski

  - Rok 2008

  This paper describes a system of geo-location of an IP user that would enable VoIP users to call 112. Basic requirement is fast (under 50ms) determination of the commune of the subscriber. To obtain as accurate information as possible aggregation of several methods was proposed: using a database of locations of IP ranges created by specialized companies, traceroute using history of user locations to assume his current one.It is...

• Józef Woźniak prof. dr hab. inż.

  Osoby

  Katedra Teleinformatyki

  Prof. dr hab. inż. Józef Woźniak prof. zw. Politechniki Gdańskiej ukończył studia na Wydziale Elektroniki Politechniki Gdańskiej w 1971 r. W 1976 r. uzyskał stopień doktora nauk technicznych, a w 1991 r. stopień doktora habilitowanego w dyscyplinie telekomunikacja i specjalności teleinformatyka. W styczniu roku 2002 otrzymał tytuł profesora nauk technicznych. W 1994 r. został mianowany na stanowisko profesora nadzwyczajnego w Politechnice...

• Andrzej Chybicki dr inż.

  Osoby

  Katedra Systemów Geoinformatycznych

  Z wykształcenia informatyk, absolwent Wydziału Elektroniki, Telekomunikacji i Informatyki Politechniki Gdańskiej, doktor nauk technicznych w dziedzinie informatyka specjalizujący się w przetwarzaniau danych przestrzennych w rozproszonych systemach informatycznych. Ukierunkowany na wykorzystywanie osiągnięć i wiedzy zakresu prowadzonych badań w przemyśle. Współpracował z szeregiem podmiotów przemysłu informatycznego, geodezyjnego...

• Quality measure of VoIP services in carrier grade systems

  Publikacja

  • S. Kaczmarek
  • M. Krajewski

  - Zeszyty Naukowe Wydziału ETI Politechniki Gdańskiej. Technologie Informacyjne - Rok 2010

  This paper describes passive measurement method of VoIP services quality in carrier grade systems, engaging slight system resources. Measurement is based on analyzing quality information in sender and receiver reports in RTCP packets sent by the end points of RTP session. Data is analyzed and stored by Session Boarder Controllers SBC. Objective evaluation of VoIP calls is based on quality information of IP connection and voice...

• New approach for determining the QoS of MP3-coded voice signals in IP networks

  Publikacja

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

  - EURASIP Journal on Audio Speech and Music Processing - Rok 2017

  Present-day IP transport platforms being what they are, it will never be possible to rule out conflicts between the available services. The logical consequence of this assertion is the inevitable conclusion that the quality of service (QoS) must always be quantifiable no matter what. This paper focuses on one method to determine QoS. It defines an innovative, simple model that can evaluate the QoS of MP3-coded voice data transported...

  Pełny tekst do pobrania w portalu

• Platform

  Czasopisma

  ISSN: 1836-5132

• Performance of FAN conception of traffic control in IP QoS networks

  Publikacja

  • S. Kaczmarek
  • M. Landowski

  - Rok 2008

  In this paper we present the architectural implementation of Flow Aware Networking (FAN), a new approach for realizing QoS guarantees in the Internet. We also propose FAN traffic control algorithm which performs traffic control on flow level. Using the proposed FAN node model, we conduct simulation research to prove if FAN can be a new approach for realizing QoS guarantees. The basis of this research is finding a way to guarantee...

  Pełny tekst do pobrania w serwisie zewnętrznym

• The need for new transport protocols on the INTERNET

  Publikacja

  • J. Woźniak
  • K. Nowicki

  - Automatyka Elektryka Zakłócenia - Rok 2023

  The TCP/IP protocol suite is widely used in IP networks, regardless of diverse environments and usage scenarios. Due to the fact of being the basic concept of organizing the work of the Internet, it is the subject of interest and constant analysis of operators, users, network researchers, and designers. The Internet is a "living" organism in which new needs appear all the time. This is particularly important due to the emerging...

  Pełny tekst do pobrania w serwisie zewnętrznym