NDLI: Simulations of Low-Density Parity-Check Codes under high-order modulation

Content Provider	IEEE Xplore Digital Library
Author	Xin Zhao Lidong Zhu Yantao Guo Xiaogang Gou
Copyright Year	2012
Description	Author affiliation: Science and Technology on Information Transmission and Dissemination in Communication Networks Laboratory, The 54th Research Institute of CETC, Shijiazhuang, Hebei, China, 050081 (Yantao Guo; Xiaogang Gou) \|\| National Key Laboratory of Science and Technology on Communications, UESTC, Chengdu, China, 611731 (Xin Zhao; Lidong Zhu)
Abstract	Improving the spectral efficiency as far as possible while guaranteeing communication quality by channel coding becomes the development direction of the communication system. This paper studies the application of Low-Density Parity-Check Codes under high-order modulation, which not only considers improving the reliability of communication through the LDPC channel coding, but also taking the effectiveness of communication by using high-order modulation. A detailed analysis is given for two methods of the calculation of initialization information for the LLR-BP algorithm under high-order modulation: component calculation and Euclidean distance calculation. The first method is deduced in detail by taking 16APSK modulation as an example. Finally, simulations are done to verify the decoding performance of LDPC code under high-order modulation. We do the simulations combining with QPSK, 8PSK, and 16APSK. The simulation results demonstrate the feasibility of the first method. The performance of two methods is similar.
Starting Page	482
Ending Page	485
File Size	107854
Page Count	4
File Format	PDF
ISBN	9781467313025
e-ISBN	9781467313056
DOI	10.1109/GSMM.2012.6314384
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-05-27
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Algorithm design and analysis Simulation Modulation LDPC initialization Parity check codes Decoding high-order modulation Channel coding encode and decode Standards
Content Type	Text
Resource Type	Article

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