ERROR PERFORMANCE OF DIFFERENTIAL PHASE SHIFT TRANSMISSION OVER A TELEPHONE LINE

Abstract

The paper considers differential phase-shift transmission over a band-limited channel with specified phase and amplitude characteristics. The problem treated is the prediction of feasible data rates and corresponding error rates over such channels. An expression is given for the probability of error. This expression takes into account intersymbol and interchannel interference when differential phase-shift keying modulation is used. A distortion index which is a measure of phase error is defined, and the concept of phase opening which parallels the concept of eye opening commonly employed in the amplitude- shift keying modulation is introduced. This analysis examines effects of various parameters on the performance of a high data-rate transmission system over a telephone line. Results indicate that for a carefully equalized line a single tone system should be used, and that higher order phase alphabets are to be preferred as the bit increases.

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1967
Accession Number
AD0658437

Entities

People

  • J. J. Bussgang
  • M. Leiter

Organizations

  • MITRE Corporation

Tags

Communities of Interest

  • Human Systems
  • Space

DTIC Thesaurus Topics

  • Air Force
  • Alphabets
  • Bits
  • Contracts
  • Control Systems
  • Corporations
  • Data Rate
  • Digital Data
  • Frequency
  • Intersymbol Interference
  • Massachusetts
  • Modulation
  • Notation
  • Phase Diagrams
  • Phase Shift
  • Telephone Lines
  • United States

Readers

  • Radio communications and signal processing.