Title :
A new QoS mapping for streamed MPEG video over a DiffServ domain
Author :
Magalhaes, Johann Max Hofmann ; Guardieiro, Paulo Roberto
Author_Institution :
Univ. Fed. de Uberlandia, Brazil
fDate :
29 June-1 July 2002
Abstract :
We present a new QoS mapping for streamed MPEG video over a DiffServ domain. in this mechanism, QoS indexes are defined based on the loss and delay requirements of each video flow. In agreement with these QoS indexes, the video packets are mapped in the classes of the AF service. The efficiency of this mechanism was evaluated by means of modeling and simulation of MPEG-4 video transmission over a DiffServ domain. The results show that the proposed QoS mapping can take advantages of the DiffServ architecture, making possible an improvement in the video quality according to the user and application needs.
Keywords :
Internet; data compression; delays; digital simulation; packet switching; quality of service; video coding; visual communication; AF service; DiffServ architecture; DiffServ domain; Internet applications; MPEG compression techniques; MPEG-4 video transmission modeling; MPEG-4 video transmission simulation; QoS indexes; QoS mapping; delay requirements; loss requirements; streamed MPEG video; video flow; video packets; video quality; Decoding; Delay; Diffserv networks; Proposals; Quality of service; Streaming media; Transform coding; Video compression; Videoconference; Web and internet services;
Conference_Titel :
Communications, Circuits and Systems and West Sino Expositions, IEEE 2002 International Conference on
Print_ISBN :
0-7803-7547-5
DOI :
10.1109/ICCCAS.2002.1180707
