Yingxue Zhang , Xiangmin Fang , Meihua Bi , Yongqiang Zhang , Huiyan Wu , Miao Hu
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引用次数: 0
Abstract
In this paper, a low overhead joint look-up table (LUT) and quadratic discriminant analysis (QDA) scheme is firstly presented to realize the compensation of inter-symbol interference (ISI) in the high-speed short-range intensity modulation and direct detection (IM/DD) system. Here, the LUT is employed to mitigate the signal distortion by generating pre-distorted signals, and the QDA is utilized to equalize the received signals that without requiring the extra complex optimization algorithm. A 100-Gb/s 4-level pulse amplitude modulation (PAM-4) IM/DD simulation transmission system is established to verify the effectiveness of our proposed scheme. The results show that the proposed LUT-QDA reduces the training sequence length by 76% and the number of taps by 63% compared to Volterra, and outperforms the Volterra and QDA by almost 1.3 dBm and 1.5 dBm at 20 km standard single-mode fiber (SSMF) transmission, respectively.
期刊介绍：
Innovations in optical fiber technology are revolutionizing world communications. Newly developed fiber amplifiers allow for direct transmission of high-speed signals over transcontinental distances without the need for electronic regeneration. Optical fibers find new applications in data processing. The impact of fiber materials, devices, and systems on communications in the coming decades will create an abundance of primary literature and the need for up-to-date reviews.
Optical Fiber Technology: Materials, Devices, and Systems is a new cutting-edge journal designed to fill a need in this rapidly evolving field for speedy publication of regular length papers. Both theoretical and experimental papers on fiber materials, devices, and system performance evaluation and measurements are eligible, with emphasis on practical applications.
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