Prospects of Visible Light Communications in Satellites

Ciaramella, E.; Cossu, G.; Ertunc, Ezgi; Gilli, L.; Messa, A.; Presi, M.; Rannello, M.; Bresciani, F.; Basso, V.; Dell’Orso, R.; Palla, F.

doi:10.1109/icton51198.2020.9203541

Cited by 6 publications

(4 citation statements)

References 3 publications

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“…Visible light communication (VLC) is a communication system where data is sent after it is modulated using visible light waves. In general, any system where data is sent using any visible light to human eyes can be called VLC [1][2][3]. Nevertheless, this type of communication was based on transmitting information in a manner that is invisible to human vision, so that all that could be seen is the normal ambient illumination without any noticeable difference [1].…”

Section: Introductionmentioning

confidence: 99%

“…There are two main promising space technologies based on VLC according to free-space optical communications for Space FOCS project [2]. The first application scenario deals with transmitting Gbit/s signals on small satellites, e.g., CubeSats and MicroSats.…”

Section: Introductionmentioning

confidence: 99%

“…The first application scenario deals with transmitting Gbit/s signals on small satellites, e.g., CubeSats and MicroSats. The second selected research line is a low-bit-rate communication between satellites, e.g., inter-satellite communications [2,6,12].…”

Section: Introductionmentioning

confidence: 99%

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A complexity efficient PAPR reduction scheme for FBMC-based VLC systems

2024

Opto-Electronics Review

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Visible light communication based on a filter bank multicarrier holds enormous promise for optical wireless communication systems, due to its high-speed and unlicensed spectrum. Moreover, visible light communication techniques greatly impact communication links for small satellites like cube satellites, and pico/nano satellites, in addition to inter-satellite communications between different satellite types in different orbits. However, the transmitted visible signal via the filter bank multicarrier has a high amount of peak-toaverage power ratio, which results in severe distortion for a light emitting diode output. In this work, a scheme for enhancing the peak-to-average power ratio reduction amount is proposed. First, an algorithm based on generating two candidates signals with different peakto-average power ratio is suggested. The signal with the lowest ratio is selected and transmitted. Second, an alternate direct current-biased approach, which is referred to as the addition reversed method, is put forth to transform transmitted signal bipolar values into actual unipolar ones. The performance is assessed through a cumulative distribution function of peak-to-average power ratio, bit error rate, power spectral density, and computational complexity. The simulation results show that, compared to other schemes in literature, the proposed scheme attains a great peak-to-average power ratio reduction and improves the bit the error rate performance with minimum complexity overhead. The proposed approach achieved about 5 dB reduction amount compared to companding technique, 5.5 dB compared to discrete cosine transform precoding, and 8 dB compared to conventional direct current bias of an optical filter bank multicarrier. Thus, the proposed scheme reduces the complexity overhead by 15.7% and 55.55% over discrete cosine transform and companding techniques, respectively.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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A complexity efficient PAPR reduction scheme for FBMC-based VLC systems

2024

Opto-Electronics Review

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“…Although, the studies indicate low bandwidth and high power, LEDs are not suitable for reaching higher bandwidth and low power consumption. Therefore, recently, we proposed a new approach of OWC system for satellite communication [9][10] using COTS components having low-cost and low-power consumption. The system leverages on the most recent achievements for indoor OWC.…”

Section: Introductionmentioning

confidence: 99%

High-throughput optical wireless solutions for intra-satellite communications

Ertunc¹,

Cossu²,

Messa³

et al. 2021

International Conference on Space Optics — ICSO 2020

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We theoretically and experimentally demonstrate a 100 Mb/s Optical Wireless Communication (OWC) system for 3U (30x30x30 centimeter) intra-CubeSat. The system has low power consumption and is made of low cost commercially available off-the-shelf (COTS) components such as VCSEL, APD, Si-PD and common ball lenses. Since the system is for the 3U CubeSat, 40 cm distance between optical transceiver was targeted. We successfully designed the system and tested with 4 mm and 5 mm ball lenses to optimize our system for the future activities.

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