DocumentCode :
759448
Title :
A Technique for Adaptive Voice Flow Control in Integrated Packet Networks
Author :
Bially, Theodore ; Gold, Bernard ; Seneff, Stephanie
Author_Institution :
M.I.T., Lincoln Laboratory, Lexington, MA
Volume :
28
Issue :
3
fYear :
1980
fDate :
3/1/1980 12:00:00 AM
Firstpage :
325
Lastpage :
333
Abstract :
Integrated packet-switched networks have potential for providing improved performance by dynamically sharing transmission bandwidths between various users and user types, but new flow control methods are needed to deal with packetized voice traffic. This paper describes a packet voice flow control concept based on embedded speech coding. Results are presented from a computer simulation study of the technique in the context of a multilink wideband packet speech network. Several control methodologies are described, leading to an end-to end feedback approach that achieves stable operation and efficient utilization of network resources by adaptively matching transmitted voice bit rates to prevailing network conditions. Issues in the design of embedded speech coding algorithms are reviewed and a candidate structure based on channel vocoding principles is presented, along with the subjective results of some preliminary listening tests
Keywords :
Adaptive coding; Packet switching; Speech coding; Adaptive control; Bandwidth; Bit rate; Communication system traffic control; Computer simulation; Feedback; Programmable control; Speech coding; Traffic control; Wideband;
fLanguage :
English
Journal_Title :
Communications, IEEE Transactions on
Publisher :
ieee
ISSN :
0090-6778
Type :
jour
DOI :
10.1109/TCOM.1980.1094677
Filename :
1094677
Link To Document :
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