An efficient implementation of turbo decoder on ADI TIGERSHARC TS201 DSP

Abstract

This paper describes an efficient software implementation of the 3GPP turbo decoder on the ADI TS201 TigerSHARC DSP. The turbo decoder is implemented based on the sliding window Log-MAP algorithm and exploits the sub-word parallelism and single instruction multiple data (SIMD) architecture of the TS201 DSP to achieve high data rates (around 6 Mbps) that were previously achievable only in hardware.