Efficient frequency-domain channel equalization methods for dual-polarization orthogonal frequency-division multiplexing/offset quadrature amplitude modulation-passive optical network

被引：5

作者：

Lin, Bangjiang ^{[1
]}

Fang, Xi ^{[2
]}

Tang, Xuan ^{[1
]}

Lin, Chun ^{[1
]}

Li, Yiwei ^{[1
]}

Zhang, Shihao ^{[1
]}

Wu, Yi ^{[3
]}

Li, Hui ^{[3
]}

机构：

[1] Chinese Acad Sci, Quanzhou Inst Equipment Mfg, Haixi Inst, Bolan Ave, Jinjiang 362200, Fujian Province, Peoples R China

[2] Peking Univ, State Key Lab Adv Opt Commun Syst & Networks, 5 Yiheyuan Rd, Beijing 100871, Peoples R China

[3] Fujian Normal Univ, Key Lab OptoElect Sci & Technol Med, Minist Educ, Fuzhou 350007, Fujian, Peoples R China

来源：

OPTICAL ENGINEERING | 2016年 / 55卷 / 10期

基金：

中国国家自然科学基金;

关键词：

orthogonal frequency-division multiplexing; offset quadrature amplitude modulation; passive optical network; PON; OFDM/OQAM; OFDM; TRANSMISSION;

D O I：

10.1117/1.OE.55.10.106108

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We present dual-polarization orthogonal frequency-division multiplexing/offset quadrature amplitude modulation (OFDM/OQAM) transmission for passive optical network (PON) with intensity modulation and direct detection, which has high spectral efficiency and high robustness against chromatic dispersion (CD) and polarization mode dispersion (PMD). The frequency-domain optical fiber channel transmission model for dual-polarization OFDM/OQAM-PON with the CD- and PMD-induced intrinsic imaginary interference (IMI) effect is systemically deduced. The intrasymbol frequency-domain averaging (ISFA) and minimum mean-squared error (MMSE) with the full loaded (FL) and half loaded (HL) preamble structures are used to mitigate the IMI effect. Compared with the conventional interference approximation method, the ISFA and MMSE offer improved receiver sensitivity. For channel estimation, the FL method is more effective than the HL method in mitigating the IMI effect and optical noise. (C) 2016 Society of Photo-Optical Instrumentation Engineers (SPIE)

引用

页数：7

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