DOCSIS 3.1电缆调制解调器系统中混合调制码字与缩短码字的性能比较

2015 IEEE International Conference on Consumer Electronics (ICCE) Pub Date : 2015-03-26 DOI:10.1109/ICCE.2015.7066563

Joonyoung Jung, Dong-Joon Choi, N. Hur

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引用次数: 1

摘要

本文对DOCSIS 3.1规范中定义的混合调制码字和缩短码字进行了性能比较。在混合调制码字中，并非对OFDM符号的所有子载波都使用相同的调制星座。从信噪比和频谱效率的角度出发，需要通过性能比较来确定有效的传输参数。本文通过比较，提出了更高效的码字方案。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Performance comparison of mixed modulation codewords and shortened codewords in DOCSIS 3.1 cable modem system

This paper provides a performance comparison of mixed modulation codewords and shortened codewords defined in DOCSIS 3.1 specifications. In mixed modulation codewords, the same modulation constellation is not used for all sub-carriers of the OFDM symbol. The performance comparison is needed to decide efficient transmission parameters at the view of signal-to-noise ratio and spectral efficiency. In this paper, we present the more efficient codeword scheme from the comparison.

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2015 IEEE International Conference on Consumer Electronics (ICCE)

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