Performance of RNS-Based Orthogonal DS-COMA System with Concatenated Coding and Diversity
Lie‐Liang Yang, Chengshu Li, J. Šimša · HKIE Transactions · 1998
This paper presents the evaluatian of a residue number system (RNS) based direct-sequence, code division multiple-access communication system with respect to bit error rote (BER), when the channel is modeled as a multipath Rayleigh fading and noncoherent square-law detection with equal gain combining (EGC) is emplayed. Bath the uncoded system and the well-known concatenated coded system with nonbinary Reed-Solomon (RS) codes as the outer codes and the so-coiled residue number system product codes (RNS-PC) as the Inner codes are concerned. Expressions of BER for both uncoded and concatenated coded systems are presented. Our results show that the proposed scheme constitutes a high efficiency parallel transmissian method for high-bit-rate COMA systems.