Turbo block codes using modified Kaneko's algorithm

Abstract

An efficient soft-input-soft-output (SISO) iterative decoding method using Kaneko's algorithm for block turbo code (BTC) is proposed. Hard outputs are converted to soft-decisions using reliability calculations. The algorithm presents a niajor advantage over the existing decoding algorithms for BTCs by providing ample flexibility in terms of performance-complexity trade-off. For any performance, the computational complexity of the proposed algorithm is less than the computational complexity of the similar existing algorithms. The simulation results for the decoding algorithm for different two-dimensional BTCs over an AWGN channel are shown.