Method of increasing the efficiency of coding communications systems with information feedback

Authors

  • V. A. Kazakov National Polytechnic Institute, Mexico
  • Lopez F. Tejeda National Polytechnic Institute, Mexico

DOI:

https://doi.org/10.3103/S073527270804002X

Abstract

A method of increasing the efficiency of the coding communications systems with information feedback is suggested. The operational logic of such systems is described followed by general formulas used to determine the error probability, average energy consumption and average number of iterations. The essence of this method lies in the appropriate and controlled choice of thresholds in the feedback channel receiver. This method of processing the code combinations in the feedback channel allows escaping energy losses under small signal-to-noise ratios in the feedback channel and increasing the system’s efficiency in the remaining cases. The technical realization of the suggested method is presented.

References

S. S. L. Chang, Improvement of Two–Way Communication by Means of Feedback, Pt. 4 (IRE International Convention Record, 1961).

V. A. Kazakov, “Noise Immunity of Systems with Comparison,” Elektrosvyaz’ 22, No. 2, 18 (1968).

V. A. Kazakov, “Noise Immunity of Systems with Comparison with a Limited Number of Repetitions,” Elektrosvyaz’ 22, No. 8, 13 (1969).

Z. M. Kanevskii, Transmission of Messages with Information Feedback (Svyaz’, Moscow, 1969) [in Russian].

Т. Klove and V. Korzhik, Error Detecting Codes. General Theory and Their Application in Feedback Communication Systems (Kluver Academic Publishers, Boston–London–Dordrecht, 1995).

J. M. Ooi, Coding for Channels with Feedback (Kluver Academic Publishers, Massachusetts, 1998).

S. Wicker, Error Control Systems for Digital Communication and Storage (Prentice Hall, New Jersey, 2002).

S. Lin and D. Costello, Error Control Coding (Prentice Hall, New Jersey, 1983).

E. L. Bloh, Noise Immunity of Systems with Re-Questioning (Academy of Sciences of the USSR, Moscow, 1963) [in Russian].

Published

2008-04-02

Issue

Section

Research Articles