Title :
A Novel Soft-In-Soft-Out Decoder for Nordstrom-Robinson Code
Author :
Li, Huan ; Zou, Zhiyong ; Zhao, Xiaoxiang ; Wang, Kuang
Author_Institution :
Inst. of Inf. Sci. & Electron. Eng., Zhejiang Univ., Hangzhou
Abstract :
Nordstrom-Robinson (NR) code is an optimum nonlinear code of length 16, which is employed in digital terrestrial/television multimedia broadcasting (DTMB) standard of China. In this paper a new soft-in-soft-out (SISO) decoder for the NR code is presented. The decoding process is carried out in two steps. Firstly, an algorithm is performed to find out the most valuable codewords (MVC) set to reduce calculation complexity. Then, approximate soft information is computed based on the MVC set. Theoretical analysis and simulation results both show that the performance of the decoder is very close to ideal algorithm.
Keywords :
approximation theory; communication complexity; decoding; digital television; multimedia communication; television broadcasting; Nordstrom-Robinson code; calculation complexity; digital terrestrial broadcasting; most valuable codewords set; optimum nonlinear code; soft information approximation; soft-in-soft-out decoder; television multimedia broadcasting; Algorithm design and analysis; Bit error rate; Code standards; Decoding; Digital TV; Digital multimedia broadcasting; Error correction; Linear code; Signal processing algorithms; TV broadcasting;
Conference_Titel :
Intelligent Information Hiding and Multimedia Signal Processing, 2008. IIHMSP '08 International Conference on
Conference_Location :
Harbin
Print_ISBN :
978-0-7695-3278-3
DOI :
10.1109/IIH-MSP.2008.271
