Information Theory and Coding Theory

Performance of $q$-ary Coding in Channels with Fading When Multiple-Frequency Signals Are Used

V. I. Korzhik, N. A. Savel'ev


Abstract: The authors investigate the upper bound for the erroneous-decoding probabilities in $q$-ary channels made up of multiple-frequency modems with independent frequency fading. The error distributions with respect to time that are least favorable for encoding are determined, as well as the capacity of $q$-ary channels and the energy gain from the use of encoding for Rayleigh fading.

UDC: 621.391.15

Received: 05.05.1981

 English version: Problems of Information Transmission, 1983, 19:3, 177–183

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