3-Bit Digitized-RoF Retransmission of 12ch 16APSK Broadcast Signals with Improved Nonlinear Compression

Shiina, Ryota; Fujiwara, Toshihito; Ikeda, Satoshi

doi:10.1109/ecoc.2018.8535578

Cited by 1 publication

(3 citation statements)

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“…A p = A 0.01 p 0.01 −(0.655+0.033 ln(p)−0.045 ln(A 0.01 )−β(1−p) sin θ) (7) Here, β is expressed by the following equation.…”

Section: System Level Design Assuming Rainfall Attenuation; Modeling ...mentioning

confidence: 99%

“…To solve these problems faced by existing systems, we have proposed a novel optical video re-transmission system that applies the concept of digitized radio-over-fiber (DRoF) [6], [7]. The radio frequency (RF) signal received as a ra-dio wave or an intermediate frequency (IF) signal (yielded by head-end frequency conversion) are converted into digital signals, then framed and optically re-transmitted.…”

Section: Introductionmentioning

confidence: 99%

“…Our system is expected to accommodate, in addition to DTT in the ultra-high frequency (UHF) band, BS/CS for satellite broadcasting in the super-high frequency (SHF) band [6], [7]. In particular, in Japan, 4K/8K ultra-high definition (UHD) BS/CS broadcasting services has been underway since 2018 and is currently in the process of spreading [10].…”

Section: Introductionmentioning

confidence: 99%

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DRoF-Based Optical Video Re-Transmission System with Adaptive Combination Compression for Rain Attenuated Satellite Broadcast Signals

Shiina

Fujiwara

Taniguchi

et al. 2022

IEICE Trans. Commun.

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In order to further reduce the transmission rate of multichannel satellite broadcast signals, whose carrier-to-noise ratio (CNR fluctuates due to rainfall attenuation, we propose a novel digitized radio-overfiber (DRoF) -based optical re-transmission system based on adaptive combination compression for ultra-high definition (UHD) broadcasting satellite (BS)/communications satellite (CS) broadcast signals. The proposed system reduces the optical re-transmission rate of BS/CS signals as much as possible while handling input CNR fluctuations. Therefore, the transmission rate of communication signals in time-division multiplexing (TDM) transmission is ensured, and network sharing of communication signals and broadcast signals via passive optical network (PON) is realized.Based on the ITU-R P.618-13 prediction model, an experimental evaluation is performed using estimates of the long-term statistics of attenuation due to rainfall. The attenuation is evaluated as a percentage of the time that long-term re-transmission service is available. It is shown that the proposed system is able to accommodate a wide range of rainfall attenuation and achieve a 99.988% time percentage for the duration of service provision. In order to show the rate reduction effect of the proposed system, the quantization bit reduction effect as a function of the input CNR, which depends on rainfall attenuation, is experimentally confirmed. Experiments show that service operation time of 99.978% can be achieved by 3-bit transmission. This means a 62.5% reduction in transmission rate is realized compared to conventional fixed quantization. Furthermore, the average quantization bit number in our system for service operation times is 3.000, indicating that most service operation times are covered by just 3-bit transmission.

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“…A p = A 0.01 p 0.01 −(0.655+0.033 ln(p)−0.045 ln(A 0.01 )−β(1−p) sin θ) (7) Here, β is expressed by the following equation.…”

Section: System Level Design Assuming Rainfall Attenuation; Modeling ...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

DRoF-Based Optical Video Re-Transmission System with Adaptive Combination Compression for Rain Attenuated Satellite Broadcast Signals

Shiina

Fujiwara

Taniguchi

et al. 2022

IEICE Trans. Commun.

Self Cite

View full text Add to dashboard Cite

show abstract

3-Bit Digitized-RoF Retransmission of 12ch 16APSK Broadcast Signals with Improved Nonlinear Compression

Cited by 1 publication

References 2 publications

DRoF-Based Optical Video Re-Transmission System with Adaptive Combination Compression for Rain Attenuated Satellite Broadcast Signals

DRoF-Based Optical Video Re-Transmission System with Adaptive Combination Compression for Rain Attenuated Satellite Broadcast Signals

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