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001-es BibID:BIBFORM062520
035-os BibID:Zbl. 1183.68037
Első szerző:Gál Zoltán (informatikus)
Cím:Statistical aspects of network based real-time group communication and collaboration services / Zoltán Gál, Tamás Balla
Megjegyzések:Deep studies of available real-time Group Communication and Collaboration (GCC) solutions such as voice, video and data teamwork tools have been performed by several international projects. The main goal of these works is to compare the applicability of these tools in the production job environment, and give recommendations on how such services can be provided to these groups. The total bit rate allowed per client is 256-2048 kbps for current GCC tools. This amount includes audio, video, control, web content and whiteboard traffic as well. The IEEE 802 type LAN/MAN communication technologies with best effort characteristics need quality of service (QoS) guarantees to provide real time service to the multimedia applications. The H.323/H.264 and the H.261 network protocols use relatively high number of UDP ports to accommodate automatically to the network layer comportment deeply influenced by bursts. This aspect explains the reduced number of service class configuration possibilities at the GCC client software. Even SOHO users with 256-512 kbps ADSL access need connection to the GCC servers. Analysis of mechanisms influencing traffic QoS is required. In the paper statistical evaluation of network traffic of the group communication and collaboration applications are effectuated with special interest regarding efficient regulation possibilities of the transmission mechanisms at low bit rate. Influence of the regulation will be presented based on time series captured in real multimedia network environment.
ISBN:978 963 069 341 7
Tárgyszavak:Műszaki tudományok Informatikai tudományok könyvfejezet
GCC Service
H.264 Codec
best effort
Hurst parameter
Megjelenés:Proceedings of the 7th International Conference on Applied Informatics, Eger, Hungary, January 28-31, 2007. / szerk. Emőd Kovács, Péter Olajos, Tibor Tómács. - Vol. 2., p. 343-351. -
További szerzők:Balla Tamás
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