Radio over Fiber: An Alternative Broadband Network Technology for IoT

Paredes-Páliz, Diego F.; Royo, Guillermo; Aznar, Francisco; Aldea, C.; Celma, S.

doi:10.3390/electronics9111785

Cited by 18 publications

(7 citation statements)

References 26 publications

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“…This block diagram is divided into three parts-transmitter side, transmission channel and receiver side. The transmitter consists of three basic components-pseudorandom bit sequence generator that generates the bits in random manner, optical source for converting electrical pulses to optical pulses and MZ modulator for transmission of those pulses to longer distances [22,23]. The transmission channel consists of SMF along with a combination of UFBG and EDC for mitigating the effect of dispersion before it reaches the receiver.…”

Section: System Modellingmentioning

confidence: 99%

RETRACTED: Research on dispersion compensation using avalanche photodiode and pin photodiode

Chen

Wang

et al. 2020

IET Collab Intel Manufact

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With the growing demand for usage among Internet users, inventions related to increase in the capacity and bandwidth of transmission channels are more significant nowadays. This continuously growing demand can be fulfilled by using the optical fibre for transmission of signals instead of the wireless mode of transmission, due to the less nonlinearity present in the optical fibre. As every available mode has its own shortcomings so does the optical fibre. It suffers from dispersion and other linearities when long-distance transmission is considered. Hence, the field of invention is associated with the compensation of dispersion in optical fibre communication at higher bit rates of 50-80 Gbps for longer distances of 120 km. After their compensation, comparison of two photodiodes, that is, pin diode and avalanche photodiode has been done at these distinct bit rates in order to achieve the best suited photodiode. After the complete analysis of simulations in terms of quality factor and bit error rate, it has been observed that at distinct bit rates of 50-80 Gbps, the simulation model using avalanche photodiode exhibits superior performance to that of the pin diode. The comparison results show that the performance of the avalanche photodiode is around 11% better than the pin diode.This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

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Section: System Modellingmentioning

confidence: 99%

RETRACTED: Research on dispersion compensation using avalanche photodiode and pin photodiode

Chen

Wang

et al. 2020

IET Collab Intel Manufact

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“…Instead of transmitting the signal from Rx to Tx shelters via the coaxial cable, the Radio-Frequency-over-Fiber link would be used. Various RFoF architectures can be found nowadays in practical use [7], including the ones implemented with commercial ICs [8] and those implemented in dedicated CMOS technology [9], [10] -for both fronthaul and downlink connection applications.…”

Section: Radio-frequency-over-fiber Linkmentioning

confidence: 99%

Testing RFoF link for transmitting HF-OTHR signal between transmitter and receiver shelters

Petrović¹,

Dzolic²,

Lekic³

et al. 2021

Telfor J

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HF-OTHR site contains two equipment shelters, up to 1 km away from each other, that need to be connected for transmitting a FMCW signal. This connection, if realized using a coaxial cable, has shown itself to be vulnerable to external electromagnetic discharges, which can damage the sensitive radar equipment. This paper explores and tests the possibility of using Radio-Frequency-over-Fiber (RFoF) link as an alternative to a coaxial cable for transmission of signal, in order to ensure the immunity from external sources of electromagnetic interference (EMI).

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“…The centralized oscillator signal was distributed to the base stations without the need for electro-optical and opto-electronic conversion. Radio over fiber [94][95][96] is proposed as an efficient and sophisticated solution to distribute the centralized OEO signal. The idea is shown in Figure 10.…”

Section: Optical Signal Distribution For the 5g Radio Access Networkmentioning

confidence: 99%

Opto-Electronic Oscillators for Micro- and Millimeter Wave Signal Generation

Ilgaz

Batagelj

2021

Electronics

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High-frequency signal oscillators are devices needed for a variety of scientific disciplines. One of their fundamental requirements is low phase noise in the micro- and millimeter wave ranges. The opto-electronic oscillator (OEO) is a good candidate for this, as it is capable of generating a signal with very low phase noise in the micro- and millimeter wave ranges. The OEO consists of an optical resonator with electrical feedback components. The optical components form a delay line, which has the advantage that the phase noise is independent of the oscillator’s frequency. Furthermore, by using a long delay line, the phase noise characteristics of the oscillator are improved. This makes it possible to widen the range of possible OEO applications. In this paper we have reviewed the state of the art for OEOs and micro- and millimeter wave signal generation as well as new developments for OEOs and the use of OEOs in a variety of applications. In addition, a possible implementation of a centralized OEO signal distribution as a local oscillator for a 5G radio access network (RAN) is demonstrated.

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Radio over Fiber: An Alternative Broadband Network Technology for IoT

Cited by 18 publications

References 26 publications

RETRACTED: Research on dispersion compensation using avalanche photodiode and pin photodiode

RETRACTED: Research on dispersion compensation using avalanche photodiode and pin photodiode

Testing RFoF link for transmitting HF-OTHR signal between transmitter and receiver shelters

Opto-Electronic Oscillators for Micro- and Millimeter Wave Signal Generation

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