用于相干光接收机前向纠错的QPSK低复杂度软差分译码

36th European Conference and Exhibition on Optical Communication Pub Date : 2010-11-04 DOI:10.1109/ECOC.2010.5621498

M. Kuschnerov, S. Calabrò, K. Piyawanno, B. Spinnler, M. Alfiad, A. Napoli, B. Lankl

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引用次数: 13

摘要

基于QPSK的相干系统依靠差分编码来避免灾难性错误传播。提出了一种简单的软差分译码方案，将FEC后的损失限制在0.75dB，类似于FEC前的二进制差分译码。

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Low complexity soft differential decoding of QPSK for forward error correction in coherent optic receivers

Coherent systems based on QPSK rely on differential encoding to avoid catastrophic error propagation. A simple solution for soft differential decoding is presented that limits the penalty after FEC to 0.75dB, similar to pre-FEC binary differential decoding.

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36th European Conference and Exhibition on Optical Communication

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