Lasers, Fiber Optics, and Communications

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

[+] Author Affiliations
Bangjiang Lin, Xuan Tang, Chun Lin, Yiwei Li, Shihao Zhang

Chinese Academy of Sciences, Quanzhou Institute of Equipment Manufacturing, Haixi Institutes, Bolan Avenue, Jinjiang, Fujian Province 362200, China

Xi Fang

Peking University, State Key Laboratory of Advanced Optical Communication Systems and Networks, No. 5 Yiheyuan Road, Beijing 100871, China

Yi Wu, Hui Li

Fujian Normal University, Key Laboratory of OptoElectronic Science and Technology for Medicine of Ministry of Education, Fuzhou, Fujian 350007, China

Opt. Eng. 55(10), 106108 (Oct 13, 2016). doi:10.1117/1.OE.55.10.106108
History: Received June 22, 2016; Accepted September 26, 2016
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Abstract.  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.

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© 2016 Society of Photo-Optical Instrumentation Engineers

Citation

Bangjiang Lin ; Xi Fang ; Xuan Tang ; Chun Lin ; Yiwei Li, et al.
"Efficient frequency-domain channel equalization methods for dual-polarization orthogonal frequency-division multiplexing/offset quadrature amplitude modulation-passive optical network", Opt. Eng. 55(10), 106108 (Oct 13, 2016). ; http://dx.doi.org/10.1117/1.OE.55.10.106108


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