基于2.5 Gbit/s Delta-sigma调制的准2位32-QAM OFDM数字RoF链路

2022 IEEE International Topical Meeting on Microwave Photonics (MWP) Pub Date : 2022-10-01 DOI:10.1109/MWP54208.2022.9997713

Zu-Kai Weng, P. Dat, A. Kanno, T. Kawanishi

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引用次数: 0

摘要

实验实现并详细讨论了基于准2位δ - σ调制32-QAM OFDM的DRoF链路。通过光学构造delta-sigma调制的2位QAM-OFDM数据，减轻了光链路中非线性的影响。优化后，准2位delta-sigma调制的32-QAM OFDM在- 15.10 dBm的最低接收功率下，以2.5 Gbit/s的原始数据速率成功地传输了15 km SMF。提出的DRoF链路结构增强了抗非线性的鲁棒性和低成本的RRHs，适用于5G以上的应用。

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Quasi 2-bit 32-QAM OFDM based Digital RoF Link by Delta-sigma Modulation at 2.5 Gbit/s

We experimentally implemented and discussed the quasi 2-bit delta-sigma modulated 32-QAM OFDM based DRoF link in detail. Optically constructing the delta-sigma modulated 2-bit QAM-OFDM data mitigated the impact of nonlinearity in optical links. After optimization, the quasi 2-bit delta-sigma modulated 32-QAM OFDM was successfully transmitted over 15-km SMF with a raw data rate of 2.5 Gbit/s at the lowest receiving power of −15.10 dBm. The proposed DRoF link structure boosted the robust anti-nonlinearity and cost-effective RRHs, which was appropriate for the beyond 5G applications.

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2022 IEEE International Topical Meeting on Microwave Photonics (MWP)

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