PERFORMANCE ANALYSIS OF SOFTWARE IMPLEMENTATION OF A 3GPP COMPLIANT TURBO DECODER

This paper presents the results of implementation of the turbo encoding/decoding scheme as described in the Third Generation Digital Cellular Telephony Standards as specified in the 3GPP TS 25.212 v.360. The implementation goal was to implement an efficient software realization of a turbo decoder to decode a turbo encoded signal in presence of noise. Analysis of the performance of the turbo decoder in presence of AWGN (additive white Gaussian noise) based on various parameters such as number of quantization bits, number of iterations etc. is presented.