A class of generalized concatenated block coding schemes withnoncoherent detection for the uplink of mobile code division multipleaccess (CDMA) communications is considered. We use the first-orderReed-Muller (RM) code as inner code and short low rate RM codes as outercodes. In particular, we investigate a GC code with the same rate asthat of the concatenated convolutional/orthogonal coding scheme proposedby Qualcomm CDMA. Simulation results show that for low signal-to-noiseratios which are of interest in mobile communication links, this codingscheme yields a lower bit error rate with a considerably smallerdecoding complexity
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