Novel transmitter IQ imbalance compensation algorithm using training symbols in PDM CO-OFDM system

被引：3
|
作者：
Ma, Xiurong [1 ]
Li, Pengru
Yao, Xin
Zhang, Haoyuan
机构：
[1] Tianjin Univ Technol, Dept Informat & Commun Engn, Sch Elect & Elect Eng, Tianjin 300384, Peoples R China
来源：
OPTICS COMMUNICATIONS | 2018年 / 426卷
关键词：
Polarization division multiplexed; Coherent optical orthogonal frequency division multiplexing system; IQ mismatch; Training symbol; Compensation; COHERENT OPTICAL OFDM; MISMATCH COMPENSATION; PHASE NOISE; TRANSMISSION;
D O I：
10.1016/j.optcom.2018.06.016
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We systematically deduce the optical fiber channel transmission mathematical model with in-phase/quadrature (IQ) imbalance and channel distortion for polarization division multiplexed (PDM) coherent optical orthogonal frequency division multiplexing (CO-OFDM) system. With the analysis of model, we propose two novel algorithms using training symbols, which can well realize channel distortion and IQ imbalance estimation. This study shows the proposed algorithms performed significantly better than the commonly used approaches. We examine the two proposed methods with simulation via analyzing the bit error rate in the case of different optical signal to noise ratio (OSNR), transmission distance and IQ mismatch at 80Gb/s and 100Gb/s.
引用
收藏
页码：607 / 611
页数：5
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