Wszystkie pola: network techniques - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Video Streaming over IP using the DASH Technique
Autorzy:: Hoppe, C.
Uhl, T.
Powiązania:: https://bibliotekanauki.pl/articles/308880.pdf
Data publikacji:: 2018
Wydawca:: Instytut Łączności - Państwowy Instytut Badawczy
Tematy:: H.265
IP network technology
MPEG-DASH
QoS measurement techniques
QoS measurement environment
video streaming
VP9
Opis:: Modern Internet serves as a high-performance platform for an ever-increasing number of services. Some of them – video services in particular – are of the broadband variety. So, it is not surprising that segments of networks can rapidly become congested, which may lead to a deterioration in quality. It is hoped that the new MPEG-DASH technique will alleviate congestion. This paper contains an analysis of the new technology’s impact on the quality of service in IP networks. It also explains a new numerical tool QoSCalc(DASH) that has been used to analyze the DASH method in different scenarios. The results are presented graphically and interpreted.
Źródło:: Journal of Telecommunications and Information Technology; 2018, 2; 3-7
1509-4553
1899-8852
Pojawia się w:: Journal of Telecommunications and Information Technology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: The New Metric and the New Software Tool for Determining QoS in the Short Messages Service in Mobile Networks
Autorzy:: Rompf, M.
Uhl, T.
Powiązania:: https://bibliotekanauki.pl/articles/309483.pdf
Data publikacji:: 2017
Wydawca:: Instytut Łączności - Państwowy Instytut Badawczy
Tematy:: communication network
ETSI TS 102-250-2
QoS measurement environment
QoS measurement techniques
queuing model
SMS service
Opis:: With traveling professions and nomadic lifestyles on the increase there is a growing need for comprehensive mobile networking within the Next Generation Network, and the security, reliability and technical independency of the Short Message Service (SMS) is becoming more and more indispensable for business processes. Since competitiveness goes hand-in-hand with this business capability, and methods to determine the quality of this service are becoming equally indispensable. This paper presents possible methods to evaluate the “Completion Rate of SMS” and “End-to-End Delivery Time” and combinations of them (new metric in this paper). A software tool, QoSCalc(SMS), has been developed in collaboration with the authors in order to verify whether service providers are abiding by the Service Level Agreements. The tool has been tested in a real measurement environment and the results are presented graphically here and interpreted.
Źródło:: Journal of Telecommunications and Information Technology; 2017, 2; 3-10
1509-4553
1899-8852
Pojawia się w:: Journal of Telecommunications and Information Technology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: A New Parameterized Model for Determining Quality of Online Video Service Using Modern H.265/HEVC and VP9 Codecs
Autorzy:: Uhl, Tadeus
Hoppe, Christian
Powiązania:: https://bibliotekanauki.pl/articles/1839313.pdf
Data publikacji:: 2020
Wydawca:: Instytut Łączności - Państwowy Instytut Badawczy
Tematy:: H.265/HEVC
IP network
ITU-T
J.341
native RTP
QoS measurement techniques
video services
VP9
Opis:: This paper describes a new measurement method (VS model) for determining the quality of online video services relying on modern H.265/HEVC and VP9 codecs. The said method has been developed on the basis of VQuad-HD curves (according to ITU-T J.341). This model does not refer to signal analysis, but protocol analysis instead. The parameters used are: type of video codec, encoding rate, transport technique, packet loss and burst size. The method may be implemented quickly and easily, which is one of the great advantages when using this method to measure QoS.
Źródło:: Journal of Telecommunications and Information Technology; 2020, 4; 72-78
1509-4553
1899-8852
Pojawia się w:: Journal of Telecommunications and Information Technology
Dostawca treści:: Biblioteka Nauki

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