On the use of repetition coding with binary digital modulations onmobile channels
Ali, A.A.; Al-Kadi, I.A.
Vehicular Technology, IEEE Transactions on
Volume 38, Issue 1, Feb 1989 Page(s):14 - 18
Digital Object Identifier 10.1109/25.31130
Summary:Repetition, diversity, and single-error-correcting codes are
examined for use with binary modulation techniques over a mobile
communication fading channel. Both bit-error performance and bandwidth
efficiency are considered for phase-shift keyed, differential
phase-shift keyed, and frequency-shift keyed modulations. The
error-correction capability of repetition coding is considered, and
optimum repetition is found. M-tuple diversity with
maximum-ratio-combining is then compared with repetition coding both
with a single-error-correcting code and without coding. It is found that
a minimum of a 10 dB signal-to-noise power ratio is required for an
improved performance with repetition code or diversity. The repetition
code is about 3 dB inferior to optimal diversity. An optimized design of
moderate complexity and bandwidth expansion can be reached with twofold
diversity and three repetitions as an inner layer of coding concatenated
with an outer single-error-correcting code
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