On the capacity of radio-over-fiber links at the W-band

Cavalcante, Lucas Costa Pereira; Rommel, Simon; Páez, Juan Sebastián Rodríguez; Olmos, Juan José Vegas; Monroy, Idelfonso Tafur

doi:10.1007/s11082-016-0554-6

Cited by 9 publications

(8 citation statements)

References 11 publications

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“…The contrast in path loss between the traditional sub-6 GHz mobile bands and the mm-wave band around n258 is shown in Fig. 5, which also shows the achievable capacity within limited bandwidths and for different antenna gains [22], [37]. Using high gain antennas which can almost entirely offset the increased path loss at mm-wave, such links have been demonstrated with capacities well beyond 100 Gbit/s over a few metres or with multiple Gbit/s over a few km [38]- [41].…”

Section: B Ultra-high Capacity Arof Point To Point Linksmentioning

confidence: 99%

High-Capacity 5G Fronthaul Networks Based on Optical Space Division Multiplexing

Rommel

Pérez-Galacho

Fàbrega

et al. 2019

IEEE Trans. on Broadcast.

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Section: B Ultra-high Capacity Arof Point To Point Linksmentioning

confidence: 99%

High-Capacity 5G Fronthaul Networks Based on Optical Space Division Multiplexing

Rommel

Pérez-Galacho

Fàbrega

et al. 2019

IEEE Trans. on Broadcast.

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“…Although attenuation is high at mm-wave frequencies, there are some frequency windows in which the atmospheric absorption is lower, offering high-capacity potential. One of these is the W-band (75-110 GHz), which is considered one of the main candidates for radio frequency links [9][10][11] . The use of high gain directive antennas is a possible solution to attenuation.…”

Section: Journal Of Communications and Information Networkmentioning

confidence: 99%

“…Immediately after that, a second VOA is used to control the optical power incident on the photodiode P PD to perform real time measurements of the BER. In the PD, the optical up-conversion process takes place, and, as a result, an RF signal is generated with a (W-band) carrier frequency of 81 GHz [6,10] . In the electrical domain, the signal is amplified to 8 dB by a medium power amplifier and transmitted using a horn antenna with a gain of 24 dBi.…”

Section: Experimental Setup Descriptionmentioning

confidence: 99%

Beam steering application for W-band data links with moving targets in 5G wireless networks

Morales

Rodríguez

Gallardo

et al. 2017

J. Commun. Inf. Netw.

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Ubiquitous broadband Internet access is one of the major goals of the next generation of wireless communications. However, there are still some locations where this is difficult to achieve. This is the case on moving vehicles and, particularly, on trains. Among the possible solutions to this problem, RoF (Radio-over-Fiber) architectures have been proposed as low-latency, cost-effective candidates. Two elements are introduced to extend the RoF approach. First, the carrier frequency is raised into the W-band (75-110 GHz) to increase the available capacity. Second, a mechanical beam-steering solution based on a Stewart platform is adopted for the transmitter antenna to allow it to follow a moving receiver along a known path, thereby enhancing the coverage area. The performance of a system transmitting a 2.5 Gbit/s non-return-to-zero signal generated by photonic up-conversion over a wireless link is evaluated in terms of real-time BER (Bit Error Rate) measurements. The receiver is situated in different positions, and the orientation of the transmitter is changed accordingly. Values below the forward error correction limit for 7% overhead are obtained over a range of 60 cm around a center point situated 2 m away from the transmitter.

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“…As the fifth generation (5G) of mobile communication technology is developed and implemented, worldwide solutions tend to propose the use of much higher frequencies, including the mm-wave range [1], [2]. Such a requirement imposes a critical demand for transmissions that are robust to both varying fading and frequency selectivity, implying the use of diversity schemes that are either highly power hungry, or somewhat compromising to the system's throughput [3].…”

Section: Introductionmentioning

confidence: 99%

Performance Analysis of a 2 × 512 19-PSK MAP Wavelet-Coding Scheme for Multipath Varying Channels

Cavalcante¹

2018

Anais De XXXVI Simpósio Brasileiro De Telecomunicações E Processamento De Sinais

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In this work we analyze the performance of a new scheme combining 2x512/19-phase shift keying Wavelet Coding with a maximum a posteriori receiver on varying multipath channels in terms of bit-error rate. Considering COST 207based power delay profiles for urban environments, we find that a maximum a posteriori receiver can provide a gain of nearly 1.5 dB in relation to Euclidean based Wavelet Coded systems on fading channels with low frequency selectivity. We also investigate in which extent a state-of-the-art equation for error probability of Wavelet-Coded systems is valid for varying multipath channels. Our findings show moderate mismatch between those equations and Monte-Carlo simulations, indicating that channel memory should be considered for the formulation of upper-bound solutions. Nevertheless, the results suggest that the wavelet coding shows considerable resilience to channels with memory, making it a suitable candidate for the use of mm-wave frequencies in future generation mobile communications.

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On the capacity of radio-over-fiber links at the W-band

Cited by 9 publications

References 11 publications

High-Capacity 5G Fronthaul Networks Based on Optical Space Division Multiplexing

High-Capacity 5G Fronthaul Networks Based on Optical Space Division Multiplexing

Beam steering application for W-band data links with moving targets in 5G wireless networks

Performance Analysis of a 2 × 512 19-PSK MAP Wavelet-Coding Scheme for Multipath Varying Channels

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