標題: Two-level modulation scheme to reduce latency for optical mobile fronthaul networks
作者: Sung, Jiun-Yu
Chow, Chi-Wai
Yeh, Chien-Hung
Chang, Gee-Kung
光電工程學系
光電工程研究所
Department of Photonics
Institute of EO Enginerring
公開日期: 31-Oct-2016
摘要: A system using optical two-level orthogonal-frequency-division-multiplexing (OFDM) -amplitude-shift-keying (ASK) modulation is proposed and demonstrated to reduce the processing latency for the optical mobile fronthaul networks. At the proposed remote-radio- head (RRH), the high data rate OFDM signal does not need to be processed, but is directly launched into a high speed photodiode (HSPD) and subsequently emitted by an antenna. Only a low bandwidth PD is needed to recover the low data rate ASK control signal. Hence, it is simple and provides low-latency. Furthermore, transporting the proposed system over the already deployed optical-distribution-networks (ODNs) of passive-optical-networks (PONs) is also demonstrated with 256 ODN split-ratios. (C) 2016 Optical Society of America
URI: http://dx.doi.org/10.1364/OE.24.025767
http://hdl.handle.net/11536/132875
ISSN: 1094-4087
DOI: 10.1364/OE.24.025767
期刊: OPTICS EXPRESS
Volume: 24
Issue: 22
起始頁: 25767
結束頁: 25773
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