Ratio statistic test assisted residue number system based parallel communication schemes

A residue number system (RNS) based parallel communication system is proposed and its performance is evaluated using non-coherent demodulation. Diversity reception techniques with equal gain combining (EGC) or selection combining (SC) are considered and the related performance is evaluated using both a non-redundant and redundant residue number system based orthogonal signalling scheme. The so-called ratio statistic test (RST) is introduced for enhancing the system´s bit error rate (BER) performance. The BER performance for the above mentioned scenarios is evaluated numerically with respect to specific system parameters. Coding gains up to 8.5 dB or 11 dB are achieved at a BER of 10^-6 using one or two redundant moduli, respectively