Nonbinary LDPC-Coded Modulation System in High-Speed Mobile Communications

被引：4
|
作者：
Feng, Dan [1 ]
Xu, Hengzhou [2 ]
Zhang, Qiang [1 ]
Li, Qian [1 ]
Qu, Yucheng [1 ]
Bai, Baoming [1 ]
机构：
[1] Xidian Univ, State Key Lab Integrated Serv Networks, Xian 710071, Shaanxi, Peoples R China
[2] Zhoukou Normal Univ, Sch Network Engn, Zhoukou 466001, Peoples R China
来源：
IEEE ACCESS | 2018年 / 6卷
基金：
中国国家自然科学基金;
关键词：
Algebraic-based LDPC codes; coded modulation; high-mobility; nonbinary LDPC codes; PARITY-CHECK CODES; CONSTRUCTION;
D O I：
10.1109/ACCESS.2018.2869173
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
As a class of capacity-approaching codes, nonbinary low-density parity-check (LDPC) codes have attracted much attention because of noticeable performance. Nonbinary LDPC-coded modulation systems which have excellent performance for high-spectral efficiency transmission are also potential schemes in the future communication system. In this paper, we propose a new construction method of quasi-cyclic nonbinary LDPC codes. Furthermore, a comparative study about the performance of various coded systems over the AWGN channel and the high-mobility channel is performed on turbo codes in LTE communications and LDPC codes in 5G standard. Simulation results show that the nonbinary LDPC-coded modulation system is effective for improving the performance of wideband wireless communication systems with orthogonal frequency division multiplexing in the high-mobility scenario.
引用
收藏
页码：50994 / 51001
页数：8
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