Abstract
AbstractThe improvements on bit error rate characteristics due to compounding an error correcting coding, a bit interleaving, and a diversity combining as reliability improvement measures, are evaluated theoretically for mobile radio data transmission affected by the time‐varying fast Rayleigh fading. Although the code, modulation, and decoding are limited to the block code, noncoherent FSK, and hard decision, the time correlation of the fading in a code word is taken into account generally and rigorously in this analysis. On the basis of the calculation results for nine codes, the effect of compound strategies by the degree of bit interleaving, “with or without” diversity, code length, and number of correctable errors, are discussed in detail, and the equivalence among the strategies and the compounding effect is clarified.
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