An adaptive QoS control method in the multi-channel communication of the MPEG video data streams

Author

Ogawa, Kentaro ; Yamaoka, Katsunori ; Sakai, Yoshinori

Author_Institution

Tokyo Inst. of Technol., Japan

Volume

3

fYear

2001

fDate

2001

Firstpage

945

Abstract

We propose the new scaling and bandwidth allocation method for multistream MPEG video transmission. First, we propose hybrid scaling method which applies both re-encoding and reduction of DCT coefficient, and show that relation between SNR degradation and coded bitrate can be approximated by piecewise line. Then, we obtain the optimum bandwidth allocation algorithm for multistream video transmission, based on the strategy that the largest SNR degradation should be minimum. Furthermore, a practical bandwidth allocation method is proposed for video streams, which contain scene changes. Computer simulation shows that the proposed method can decrease largest distortion of MPEG video streams

Keywords

adaptive control; bandwidth allocation; code standards; data compression; discrete cosine transforms; quality of service; telecommunication control; telecommunication standards; transform coding; video coding; visual communication; DCT coefficient re-encoding; DCT coefficient reduction; MPEG video data streams; SNR-degradation; adaptive QoS control method; bandwidth allocation method; coded bitrate; computer simulation; hybrid scaling method; multi-channel communication; multistream MPEG video transmission; optimum bandwidth allocation algorithm; packet networks; scene changes; Adaptive control; Bit rate; Channel allocation; Communication system control; Computer simulation; Degradation; Discrete cosine transforms; Layout; Programmable control; Streaming media;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications, 2001. ICC 2001. IEEE International Conference on

Conference_Location

Helsinki

Print_ISBN

0-7803-7097-1

Type

conf

DOI

10.1109/ICC.2001.937377

Filename

937377