Development of UHDTV Wireless Camera Transmitter using Millimeter-Wave Band

Matsusaki, Yoshifumi; Fumiya, Yamagishi; Akiko, Yamasato; Nakagawa, Takayuki; Okabe, Susumu; Iai, Naohiko

doi:10.1109/rws45077.2020.9050101

Cited by 5 publications

(3 citation statements)

References 3 publications

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“…Although the cameraman does not require a return of the UHDTV signal, he/she does require low-latency and reliable HDTV returns. In particular, the use of QPSK on the downlink was examined with the SC-FDE transmission parameters used for the uplink [2] .…”

Section: Methodsmentioning

confidence: 99%

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[Paper] Study on Single Frequency Downlink with Coupling Loop Interference Canceller for Professional SC-FDE Wireless Camera using Millimeter-wave Band

Kimura

Ogawa

Suzuki

et al. 2023

MTA

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Professional wireless cameras using the millimeter-wave band can transmit more information than those in the UHF band, making this band especially useful for transmitting high-quality video and audio with low latency. Although such devices have been put into practical use, there is a need to downsize the equipment on the camera side to reduce expensive millimeter-wave band components and improve operability. In this study, we configure the downlink of a professional wireless camera for UHDTV as a single frequency network (SFN) and study the expansion of coverage provided by a booster. A coupling loop interference canceller and multi-path equalizer are installed in the booster. A computer simulation shows that the booster works well. SFN interference, in which the master and booster waves multiply propagate, can be equalized through frequency domain equalization (FDE) of the single-carrier (SC) system at the receiver side.

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Section: Methodsmentioning

confidence: 99%

“…The professional wireless cameras in use today are for high definition television (HDTV) [1] and ultra highdefinition television (UHDTV) [2] productions. For HDTV, orthogonal frequency division multiplexing (OFDM) is used for the uplink, and space time block coding (STBC) -OFDM is used in the downlink.…”

Section: Introductionmentioning

confidence: 99%

[Paper] Study on Single Frequency Downlink with Coupling Loop Interference Canceller for Professional SC-FDE Wireless Camera using Millimeter-wave Band

Kimura

Ogawa

Suzuki

et al. 2023

MTA

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“…This also allows the processing of high-quality VR images to be moved to a remote computer instead of the processors inside the VR headsets, thus reducing their cost [52]. The same principle can be applied to enable wireless streaming of ultrahigh-resolution videos [53,54]. Finally, another area that can benefit from mm-wave technology is wireless communication within data centers [55].…”

Section: Other Emerging Applicationsmentioning

confidence: 99%

Millimeter-wave generation using hybrid silicon photonics

Degli-Eredi

Jacob

et al. 2021

J. Opt.

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Technological innovation with millimeter waves (mm waves), signals having carrier frequencies between 30 and 300 GHz, has become an increasingly important research field. While it is challenging to generate and distribute these high frequency signals using all-electronic means, photonic techniques that transfer the signals to the optical domain for processing can alleviate several of the issues that plague electronic components. By realizing optical signal processing in a photonic integrated circuit (PIC), one can considerably improve the performance, footprint, cost, weight, and energy efficiency of photonics-based mm-wave technologies. In this article, we detail the applications that rely on mm-wave generation and review the requirements for photonics-based technologies to achieve this functionality. We give an overview of the different PIC platforms, with a particular focus on hybrid silicon photonics, and detail how the performance of two key components in the generation of mm waves, photodetectors and modulators, can be optimized in these platforms. Finally, we discuss the potential of hybrid silicon photonics for extending mm-wave generation towards the THz domain and provide an outlook on whether these mm-wave applications will be a new milestone in the evolution of hybrid silicon photonics.

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