Research on Low Rate Turbo Code and Its Applications
HU Dong-we · Radio Engineering · 2014
For the purpose of transmission with very low signal to noise ratios,the structure of the encoder of a low rate turbo code is presented in this paper. The corresponding decoding algorithm is analyzed,and the performance of this coding scheme is obtained by simulations. This paper presents the application method of low rate Turbo code in shortwave communications or meteor burst communications systems is proposed in high bandwidth and complex channel environment. Comparisons are conducted between the application of low rate turbo code and the concatenating scheme of high rate turbo code and spectrum spread technique. The study proves that low rate Turbo code has better performance than traditional ones. With low rate turbo code,the application of adaptive modulation and coding technique can be extended to low signal to noise scenarios.