NDLI: Voice packet communication system for private networks

Content Provider	IEEE Xplore Digital Library
Author	Saito, K. Fujiya, H. Kohmura, H. Kanno, S.
Copyright Year	1989
Description	Author affiliation: NTT Commun. Switching Lab., Tokyo, Japan (Saito, K.; Fujiya, H.; Kohmura, H.; Kanno, S.)
Abstract	The authors describe the design methodologies and system configuration for a voice packet communication system (voice PAD) which is installed on a high-speed packet switching system for multimedia communications. The voice PAD is experimentally fabricated for voice communications in the packet multiplexing mode between PABXs via digital leased lines. Speech quality during network overload is protected from serious degradation by embedded ADPCM (adaptive differential pulse code modulation) speech coding and by most-significant bits (MSB) and least-significant bits (LSB) packet interleaving. This interleaving reduces the processing load on the switching system processors required to drop LSB speech sample packets following traffic congestion. The techniques presented are based on a fixed-length packet format and are well suited to asynchronous transfer mode environments.
Starting Page	1874
Ending Page	1878
File Size	397491
Page Count	5
File Format	PDF
DOI	10.1109/GLOCOM.1989.64263
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1989-11-27
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Atherosclerosis Speech coding Pulse modulation Interleaved codes Design methodology Packet switching Multimedia communication Multimedia systems Protection Degradation
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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