Journal ArticleDOI
Speech coding technology for ATM networks
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TLDR
The performance levels for increasing cell loss are compared for various speech coding methods, in combination with methods for dividing coded speech signals into cells and discarding cells.Abstract:
A type of speech coding for asynchronous transfer mode (ATM) is described. Cell processing, which improves service quality, is taken into account. Missing-cell recovery methods are discussed, and the distinctive features of missing-cell recovery methods used with low-bit-rate coding are examined. An example of the speech quality obtained using speech coding techniques in the ATM networks is described. The performance levels for increasing cell loss are compared for various speech coding methods, in combination with methods for dividing coded speech signals into cells and discarding cells. Representative feasible network applications of coding technologies are considered. >read more
Citations
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Journal ArticleDOI
Signal compression based on models of human perception
TL;DR: It is proposed that fundamental limits in the science can be expressed by the semiquantitative concepts of perceptual entropy and the perceptual distortion-rate function, and current compression technology is examined in that framework.
Journal ArticleDOI
Signal compression: technology targets and research directions
TL;DR: A description of technology targets in signal compression and a nonexhaustive account of research directions that may lead toward these targets are presented and opportunities for integrating source coding and channel coding technologies are pointed out.
Journal ArticleDOI
An efficient solution method for Markov models of ATM links with loss priorities
TL;DR: Algorithms for solving for the cell loss rates in an asynchronous transfer mode (ATM) network using cell loss priorities are presented and the effect of the loss priority scheme on data, voice, and video traffic is investigated.
Journal ArticleDOI
Voice packetization and compression in broadband ATM networks
TL;DR: Some methods of supporting voice in broadband ISDN, (B-ISDN) asynchronous transfer mode (ATM), including voice compression, are examined and possible approaches for packetization and implementation of variable-bit-rate voice coding schemes are described.
Journal ArticleDOI
ATM for narrowband services
R.S. Mckinney,T.H. Gordon +1 more
TL;DR: The article examines the use of ATM to address the growth of emerging narrowband services such as frame relay to facilitate more rapid introduction of ATM into the network infrastructure and speed delivery of future BISDN services.
References
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Book
Broadband ISDN and asynchronous transfer mode (ATM)
TL;DR: The transfer mode chosen by the CCITT Study Group XVIII Task Group on ISDN Broadband Aspects as the basis of broadband ISDN is called the asynchronous transfer mode (ATM), a high-bandwidth, low-delay, packetlike switching and multiplexing technique.
Journal ArticleDOI
Broadband ISDN and asynchronous transfer mode (ATM)
TL;DR: The transfer mode chosen by the CCITT Study Group XVIII Task Group on ISDN Broadband Aspects as the basis of broadband ISDN is called the asynchronous transfer mode (ATM) as discussed by the authors.
Journal ArticleDOI
Embedded DPCM for Variable Bit Rate Transmission
TL;DR: In this paper, an adaptive DPCM (ADPCM) encoder and decoder is proposed for variable rate transmission with variable bit rates up to any desired maximum. But the decoded analog signal is substantially noisier than the output of an ADPCM encoder with D = E - C bits/sample.
Proceedings Article
Embedded DPCM for variable bit rate transmission
TL;DR: Within the bit stream of an embedded digital code is a stream that can be decoded to produce a reasonable replica of the analog source signal, and with minor modifications to the encoder and decoder, DPCM becomes an embedded code.
Journal ArticleDOI
Standards for metropolitan area networks
TL;DR: The discussion covers IEEE P802's view of metropolitan area networks, MAN architecture, early proposals considered by the IEEE 802.6 committee, fiber optic proposals, and the emerging consensus.