- 标题
- 摘要
- 关键词
- 实验方案
- 产品
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[IEEE 2018 IEEE Photonics Conference (IPC) - Reston, VA (2018.9.30-2018.10.4)] 2018 IEEE Photonics Conference (IPC) - Assessment of RB Noise in Bidirectional RoF Based on Different O-OFDM SSB Systems
摘要： Novel bidirectional architecture on two optical OFDM SSB modulation techniques to mitigate Rayleigh backscattered and reflections interferences in RoF transmission is proposed. The interference effect is analyzed with mathematical model comparing conventional SSB and the modified SSB based on elimination of higher order RB-RE harmonics.
关键词： Single sideband (SSB) modulation,Orthogonal Frequency Division Multiplexing (OFDM),Bidirectional Radio over Fiber (RoF)
更新于2025-09-23 15:23:52
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Estimation of Signal-to-Cross Talk Ratio of Stimulated-Raman-Scattering-Induced Cross Talk in Wavelength-Division-Multiplexing-Based Radio-over-Fiber Links
摘要： This paper evaluates the signal-to-cross talk ratio (SXR) of cross talk induced by stimulated Raman scattering (SRS) in radio-over-fiber (RoF) systems based on wavelength-division multiplexing. The reported study has modeled the relations of SXR to modulation frequency, optical power, transmission length, and effective area of fiber for various values of the walk-off parameter. The summary of experimental reveals that SXR decreases with increases in channel input power and transmission distance and increased with increases in fiber effective area and modulation frequency. Results showed that increasing the walk-off parameter from 13.6 to 81.6 ps/km increased the SXR by almost 6 dBm. Furthermore, various fibers, including standard single-mode fiber (SMF), Corning LEAF, and Alcatel TeraLight were tested for their capacity to mitigate SRS-induced cross talk. These tests demonstrated that standard SMF suppressed SRS cross talk effectively and offered values of SXR 3 dBm and 6 dBm higher than the values exhibited by Alcatel TeraLight and Corning LEAF, respectively.
关键词： wavelength-division multiplexing (WDM),signal-to-cross talk ratio (SXR),stimulated Raman scattering (SRS),single-mode fiber (SMF),radio over fiber (RoF)
更新于2025-09-23 15:22:29
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[IEEE 2018 10th International Conference on Information Technology and Electrical Engineering (ICITEE) - Bali, Indonesia (2018.7.24-2018.7.26)] 2018 10th International Conference on Information Technology and Electrical Engineering (ICITEE) - A Vestigial Sideband Modulation Scheme Using Two Parallel DD-MZMs in Radio Over Fiber Systems
摘要： The vestigial sideband modulation scheme using two parallel Dual-Drive Mach-Zehnder Modulator (DD-MZM) for radio over fiber (RoF) has been proposed in this paper. One DD-MZMs is configured to produce an optical single sideband (OSSB) modulation is configured so that if its output is added to the first DD-MZM output, it will produce unequal sideband millimeter wave (mmw). The measurement results show that RF signal power fluctuations received in the OVSB modulation scheme are smaller than the Optical Double Sideband (ODSB) and OSSB modulation schemes.
关键词： optical vestigial sideband (OVSB),two parallel DD-MZM,Radio over fiber (RoF)
更新于2025-09-23 15:21:01
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Envelope Detection of 16QAM Single Carrier Signal for IM/DD RoF System at Q-band
摘要： In this paper, an envelope detection scheme of single carrier 16-ary Intensity-Modulation/Direct-Detection (IM/DD) radio-over-fiber (RoF) system is theoretically and experimentally investigated. Based on the proposed scheme, the mm-wave 16QAM signal is down-converted to the intermediate frequency (IF) 16QAM one by an envelope detector (ED) and there is no use of a mixer at the user side. We theoretically and experimentally study the performance of the signal under various conditions. In the system, 2GBaud 16QAM signal is delivered over 25km standard single mode fiber (SSMF) link and 2.9m wireless link under bit error rate (BER) of 3.8×10-3.
关键词： Radio-over-fiber (RoF),Intensity-Modulation/Direct-Detection (IM/DD),Envelope detection
更新于2025-09-19 17:15:36
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[IEEE 2018 Asia Communications and Photonics Conference (ACP) - Hangzhou, China (2018.10.26-2018.10.29)] 2018 Asia Communications and Photonics Conference (ACP) - Bias Modulation Characteristic Analysis Using a Uni-Traveling-Carrier Photodiode
摘要： We theoretically studied the photodiode bias modulation technology. Based on one uni-traveling-carrier photodiode structure, the modulation bandwidth can reach 25 GHz at a 150 GHz subcarrier signal when the incident optical power is 12.93 dBm.
关键词： Radio-over-Fiber (RoF) links,photodiode(PD) bias modulation,uni-traveling-carrier photodiode (UTC-PD)
更新于2025-09-19 17:13:59
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Remote Optical Frequency Up-converter based on Optoelectronic Oscillator
摘要： A remote optical frequency up-converter utilizing an electro-absorption modulator based optoelectronic oscillator (EAM-OEO) for radio-over-fiber (RoF) application is proposed and experimentally demonstrated. The proposed remote optical frequency up-converter has no data leakage from optical baseband signal and no phase noise degradation stemming from optical baseband data leakage because the optical baseband signal is optically isolated from the OEO feedback loop by an optical band pass filter. Compared with the conventional remote optical frequency up-converter based on an EAM-OEO, the proposed system shows improved phase noise characteristics and receiver sensitivity.
关键词： remote optical frequency up-conversion,passive optical network (PON),Optoelectronic oscillator,radio-over-fiber (RoF)
更新于2025-09-10 09:29:36
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[IEEE 2018 20th International Conference on Transparent Optical Networks (ICTON) - Bucharest (2018.7.1-2018.7.5)] 2018 20th International Conference on Transparent Optical Networks (ICTON) - Medium-Transparent Packet-Based Fronthauling for 5G Hot-Spot Networks
摘要： In order to meet the traffic density requirement and cope with the technical challenges of hot-spot scenarios exhibiting extreme user density in very confined geographical areas, the fifth generation (5G) networks must undergo radical technological and architectural innovations that support a broad solution portfolio. This solution mix includes spectrum expansion to the millimeter Wave (mmWave) band, massive Multiple-Input Multiple- Output antennas and network densification through remote radio head deployment. Since the current Common Public Radio Interface-based mobile fronthaul cannot cope with massive mmWave multi-Gbps traffic streams, it is imperative to introduce a novel converged 5G architecture, specifically designed to facilitate mmWave access to massive amounts of users. To this end, a Medium Transparent Medium Access Control (MT-MAC) protocol has been proposed, designed to operate over a converged mmWave analog Fiber-Wireless (FiWi) fronthaul. MT-MAC allows for fast and direct negotiation of wavelength, radio frequency and time resources between the base band unit and the mmWave users, while offering fast on-demand link formation. However, its performance has not yet been evaluated under 5G heavy-traffic scenarios, as the ones previously described. Hence, in this paper, we investigate the performance of an MT-MAC-enabled fronthaul and report on its suitability for mmWave hot-spot 5G access networks.
关键词： fronthaul,optical-wireless,millimetre wave (mmWave),C-RAN,passive-optical-networks (PON),radio-over-fiber (RoF)
更新于2025-09-09 09:28:46