Different techniques for providing VCR-type functions, such as fast-forward and fast-reverse, are developed for transmission of pre-encoded MPEG video over constant-bit-rate (CBR) channels. Computer simulations using eight MPEG-1 movies showed that the receiver buffer size can be kept small even if VCR functionality is supported in the system. A simple call admission control algorithm is also developed to remain a fairly high network utilization when all VCR functions are provided.
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