The authors investigate the word error performance of FEC (forward error correction) codes in a frequency nonselective portable radio channel with different binary modulation schemes. The effect of code interleaving and channel measurement information on word-error probability is analyzed. To account for the correlated errors in the transmitted bit sequence, the channel state is modelled using the discrete Gilbert-Elliot model. The word-error probability plots provide useful insight into the significance of interleaving degree and channel-state information (CSI) for the code performance in a portable radio. It was demonstrated that at low signal/noise ratios, as is typical of the Rayleigh fading channel, the use of CSI at the decoder with both coherent and partially coherent schemes offers finite coding gain.
Coding methods for portable radios
Codierverfahren fuer tragbare Funkgeraete
39th IEEE Vehicular Technology Conference (IEEE Cat. ; 2 ; 660-665
1989
6 Seiten, 12 Quellen
Conference paper
English
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