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Nonbinary LDPC-Coded Modulation System in High-Speed Mobile Communications
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DOI：10.1109/ACCESS.2018.2869173.png)
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摘要
En 中文
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.
Keyword:
Algebraic-based LDPC codes
coded modulation
high-mobility
nonbinary LDPC codes
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IF:
3.6
论文数:
9.8W
被引数:
29.4W
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