A Simplified Radio-Over-Fiber System for Over 100-km Long-Reach n-QAM Transmission

Shiu, Run‐Kai; Chen, You‐Wei; Peng, Peng‐Chun; Su, Shang-Jen; Shao, Guan-Ming; Chiu, Justin; Li, Jyun-Wei; Chang, Gee‐Kung

doi:10.1109/jphot.2020.2993180

Cited by 10 publications

(5 citation statements)

References 25 publications

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“…The 2 km standard SMF transmission resulted in an EVM of 8.02%. It is advised to use a DML to transmit a 64 QAM 24 GHz signal over a RoF system in free space in article [11], while in [12], the researchers show that a straightforward 24 GHz RoF transmission system design is capable of supporting a Gbps-class data rate for various transmission spans in the construction of a RAN, and that 6 Gbps 64 QAM signals can be successfully spread after 20 and 50 km optical fiber and 1-meter wireless spread with EVM of 5.98% and 6.87%, respectively. 10-Msymbols/s QAM 16 externally modulated optical links for RoF applications were analyzed in the context of linearity of MZM and 16 QAM modulations over 20 km of SMF.…”

Section: Related Workmentioning

confidence: 99%

“…One may see that at a high data rate of 10 Gbps (as in 10), direct modulation falls short, achieving a maximum transmitted distance of 2 km. In contrary, at a 6 Gbps bitrate (as in [12]), the fiber length can be extended up to 50 km at the carrier frequency of 24 GHz. Furthermore, the introduction of an external modulator with a data rate of 4.68 Gbps and the same 24 GHz carrier frequency allows to achieve a fiber distance of 10 km, as demonstrated in [22].…”

Section: Journal Of Telecommunications and Information Technologymentioning

confidence: 99%

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Transmission of 10 Gbps C-band-signal-based Radio Over Fiber for Next Generation Communication Systems

Al Deen,

Abd

2024

JTIT

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Rapid development of 5G networks encourages researchers to improve the radio-over-fiber (RoF) technique in order to reach 10 Gbps data transmission rates, to increase bandwidth and range, while reducing latency and implementation cost. This paper evaluates an analog radio-over-fiber (ARoF) technique that is compatible with long-distance communication systems. We demonstrate a long distance transmission of a 28 GHz 64 QAM signal via a single mode fiber (SMF) after modulating it with the use of two parallel Mach-Zehnder modulators, without any optical amplifiers. The results show that our prototype solution is capable of transferring data over distances of up to 140 km, via SMF, with a 10 Gbps data rate. The error vector magnitude (EVM) was found to be 7.709%. The proposed system offers exceptional capabilities in terms of supporting high bitrates, while ensuring that EVM remains within the 3GPP limits. Compared to other works, the proposed solution proves to be superior in terms of performance, making it an ideal choice for next generation long-haul communication systems.

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Section: Related Workmentioning

confidence: 99%

Section: Journal Of Telecommunications and Information Technologymentioning

confidence: 99%

Transmission of 10 Gbps C-band-signal-based Radio Over Fiber for Next Generation Communication Systems

Al Deen,

Abd

2024

JTIT

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“…Here, the continuous wave laser is acting as an optical carrier source. The RF signal will be modulated by a 16 QAM modulation scheme 15 . The bandwidth of QAM signals varies from 80 to 90 GHz and bitrate is upto 10 Gbps.…”

Section: System Implementationmentioning

confidence: 99%

“…The RF signal will be modulated by a 16 QAM modulation scheme. 15 The bandwidth of QAM signals varies from 80 to 90 GHz and bitrate is upto 10 Gbps. The carrier frequency is set as 25 GHz in order for the modulated mm-wave generation.…”

Section: System Implementationmentioning

confidence: 99%

A hybrid photonic link for concurrent transmission of millimeter wave and Sub 6 Ghz wave using polarization modulator

M.¹,

Chandrasenan²,

Sreeni³

et al. 2022

Micro & Optical Tech Letters

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A stable, simple, compact, and economical photonic link which enables the sending of millimeter‐wave (mm‐wave) along with Sub‐6 GHz wave signal simultaneously is proposed in this study. Instead of using the conventional high‐cost Mach Zehnder modulation‐based link, here a cost‐efficient polarization modulator is used. The polarization modulator is used to obtain the tuneable frequency response and also to get a better performance compared to the Mach Zehnder modulator‐based system which is widely used. The concept of free space optics is introduced in this proposed system to guarantee a higher power efficiency and a higher data transmission. The advantages of mm‐wave signals and Sub‐6 GHz wave signals can be obtained in parallel by the simultaneous transmission of both signals through the multiplexed link. A 16‐QAM modulation is employed for RF signal in both mm‐wave and Sub6 GHz signal. The performance of the designed link is verified by bit error rate (BER) and the simulation gives a very small value of BER which indicates the least probability of error.

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“…Performance-boosting of bandwidth and long-distance coverage are currently the most pressing concerns for end-to-end connection and quality of service in both wired and wireless broadband access [1][2][3][4][5]. Thus, the goals of transmitting and receiving more data as enhanced Mobile Broadband (eMBB), interconnecting millions of devices at once by means of massive machine type communication (mMTC), and increasing responsiveness by ultra-reliability and low latency communication (URLLC) for fifth-generation (5G) new radio (NR) next-generation communication systems are considerably studied [6][7][8][9][10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Self-Start Multi-Wavelength Laser Source with Tunable Delay-Line Interferometer and Optical Fiber Reflector for Wireless Communication System

et al. 2021

Self Cite

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The radio-over-fiber (RoF) technique has gained a lot of interest recently, as the millimeter-wave signals can be generated and delivered in the optical domain with the advantages of low attenuation, high capacity, and being free from electromagnetic noise interference (EMI). In this paper, we propose and experimentally prove a self-start multi-wavelength laser source based on a distributed feedback laser diode (DFB-LD) for the RoF transport system. The self-start multi-wavelength laser source generates stable laser power with less than 0.18 dB power fluctuation and exhibits good stability. In order to estimate the transmission performance, data is externally modulated onto the multi-wavelength by a reflective semiconductor optical amplifier (RSOA) and transmitted through single-mode fiber (SMF). The experimental result proves that the proposed RoF transport system achieves error-free transmission and clear eye diagrams.

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A Simplified Radio-Over-Fiber System for Over 100-km Long-Reach n-QAM Transmission

Cited by 10 publications

References 25 publications

Transmission of 10 Gbps C-band-signal-based Radio Over Fiber for Next Generation Communication Systems

Transmission of 10 Gbps C-band-signal-based Radio Over Fiber for Next Generation Communication Systems

A hybrid photonic link for concurrent transmission of millimeter wave and Sub 6 Ghz wave using polarization modulator

Self-Start Multi-Wavelength Laser Source with Tunable Delay-Line Interferometer and Optical Fiber Reflector for Wireless Communication System

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