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Architecture and rate control for network TV broadcasting on application-oriented QOS

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4 Author(s)
Hongkai Xiong ; Inst. of Image Commun. & Inf. Process., Shanghai Jiaotong Univ. ; Chuanfei Luo ; Songyu Yu ; Jun Sun

This paper addresses the implementation architecture and protocol procedure of the dedicated broadband network TV broadcast system. According to application-oriented quality of service (QoS), two alternative rate control schemes for multiple DTV programs transmission are proposed collaborating with MPEG-2 system strategy and IP-base network multiplexing mechanism. As to the network bandwidth utilization, a flexible RTF-based encapsulation scheme for VBR transport stream (TS) transmission is realized to ensure the time synchronization requirement for MPEG-2 standard. As to the statistical multiplexing gain, moreover, a parallel VBR transcoding/encoding rate control algorithm for CBR TS transmission could achieve a consistent picture quality for multiple DTV programs under a constrained network bandwidth. For adapting the variable access network bandwidth, the system main control module can flexibly schedule the available rate control scheme for multiple slave service multiplexers

Published in:

Communications Systems, 2004. ICCS 2004. The Ninth International Conference on

Date of Conference:

7-7 Sept. 2004