Title :
Multichannel joint rate control of VBR MPEG encoded video for DBS applications
Author :
Guha, Ajanta ; Reininger, Daniel J.
Author_Institution :
PictureTel Corp., Peabody, MA, USA
fDate :
8/1/1994 12:00:00 AM
Abstract :
A method to transmit multiplexed digital video that potentially allows for video quality and capacity gains over conventional constant bit-rate (CBR) transmission is described. The method uses a joint rate control algorithm that regulates the encoders during buffer congestion periods using bandwidth re-allocation and source rate control. A multichannel joint rate control algorithm is described and its performance simulated for MPEG encoded video on broadcast satellite (DBS) application. Results indicate significant capacity and/or quality gains over conventional CBR transmission methods
Keywords :
buffer storage; digital communication systems; direct broadcasting by satellite; image coding; multiplexing; telecommunications control; television broadcasting; video signals; DBS applications; MPEG encoded video; VBR MPEG encoded video; bandwidth re-allocation; broadcast satellite; buffer congestion periods; capacity gains; encoders; multichannel joint rate control; multiplexed digital video; performance; quality gains; source rate control; video quality; Aggregates; Bandwidth; Control systems; Digital TV; Image coding; Image quality; Satellite broadcasting; Transform coding; Video compression; Video sharing;
Journal_Title :
Consumer Electronics, IEEE Transactions on
