Simulation of System with Code Channel Division in the LabVIEW

Abstract

Model of digital communication system with code channel division in LabVIEW is developed. During the development of the model, the focus was on performance and compatibility with the SDR (Soft Defined Radio) NI USRP-2920. The network level of the system is replaced by a source of random bits that form an analogue of speech frames. Using modeling in LabVIEW, the dependence of the probability of the appearance of distorted information frames at the output of the Viterbi decoder - FER (Frame Error Ratio) on the signal-to-noise ratio (SNR) at the decoder input was obtained.