Open AccessEfficient frequency‐domain channel equalisation methods for OFDM/OQAM‐PON with intensity modulation and direct detection
Author(s) -
Lin Bangjiang,
Tang Xuan,
Fang Xi,
Wu Yi,
Li Hui
Publication year - 2017
Publication title -
iet communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.355
H-Index - 62
eISSN - 1751-8636
pISSN - 1751-8628
DOI - 10.1049/iet-com.2016.1029
Subject(s) - orthogonal frequency division multiplexing , computer science , modulation (music) , channel (broadcasting) , frequency domain , intensity modulation , telecommunications , electronic engineering , acoustics , phase modulation , physics , computer vision , phase noise , engineering
In this study, the authors present efficient frequency‐domain channel estimation (CE) methods based on the adjacent subcarriers frequency‐domain averaging (ASFA) and minimum mean squared error (MMSE) schemes for the orthogonal frequency division multiplexing/offset quadrature amplitude modulation (OFDM/OQAM) passive optical network (PON) system. The complete channel transmission response for OFDM/OQAM‐PON with the chromatic dispersion induced intrinsic imaginary interference effect is systemically derived. Compared with the conventional interference approximation CE method, ASFA and MMSE offer improved receiver sensitivity.