Prediction and Buffering of Digital Speech Streams for Improved TASI Performance on a Demand-Assigned Satellite Channel.

Abstract

An approach for achieving efficient TASI-like multiplexing of speech on a demand-assigned satellite channel, where a number of ground stations each support a small number of off-hook callers, is proposed and evaluated. The approach presupposes a demand-assignment scheme which allows rapid changes in channel capacity assignments, and includes channel reservation requests based on speaker activity prediction, and buffering of speech at the nodes to increase multiplexing efficiency. System performance results obtained by computer simulation indicate potentially significant reductions in speech cutout fraction and accompanying increases in system TASI advantage. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Nov 15, 1979
Accession Number
ADA081593

Entities

People

  • Clifford J. Weinstein
  • Edward M. Hofstetter
  • William Kantrowitz

Organizations

  • Massachusetts Institute of Technology

Tags

DTIC Thesaurus Topics

  • Algorithms
  • Artificial Satellites
  • Channel Allocation
  • Channel Capacity
  • Communication Systems
  • Computer Programs
  • Computer Simulations
  • Markov Processes
  • Multiple Access
  • Multiplexing
  • Packet Loss
  • Probability
  • Probability Distributions
  • Random Variables
  • Simulations
  • Standards
  • Time Division Multiple Access

Fields of Study

  • Computer science

Readers

  • Computer Networking
  • Speech Processing/Speech Recognition.

Technology Areas

  • Space
  • Space - Satellites