不等错误保护QPSK调制码

[Proceedings] Singapore ICCS/ISITA `92 Pub Date : 1992-11-16 DOI:10.1109/ICCS.1992.255087

R. Morelos-Zaragoza, Shu Lin

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引用次数: 1

摘要

利用二元线性UEP (LUEP)码，结合QPSK信号集和灰度映射，得到了具有不等最小平方欧氏距离的高效分组QPSK调制码。他们给出了几个代码的例子，这些代码与相同速率和长度的最佳QPSK调制代码具有相同的最小平方欧氏距离。针对LUEP QPSK调制码，提出了一种新的次优两级软判决译码方法。

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Unequal error protection QPSK modulation codes

The authors use binary linear UEP (LUEP) codes, in combination with a QPSK signal set and Gray mapping, to obtain new efficient block QPSK modulation codes with unequal minimum squared Euclidean distances. They give several examples of codes that have the same minimum squared Euclidean distance as the best QPSK modulation codes of the same rate and length. A new suboptimal two-stage soft-decision decoding is applied to LUEP QPSK modulation codes.<>

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[Proceedings] Singapore ICCS/ISITA `92

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