Effects of link availability on the achievable performance with variable coding modulation Earth Observation satellites

Cossu, Mario; Roscigno, R.; Giancristofaro, D.; Bertinelli, Massimo; Riva, C.; Capirone, Daniele; Montorsi, G.; Maggiora, M.; Luise, Marco

doi:10.1109/estel.2012.6400108

Cited by 2 publications

(2 citation statements)

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“…The driving idea behind VCM ( or ) is to condition the modulation and coding of the link during the visibility period of one ground station to its elevation angle. Considering a targeted availability for the link p , the modcod used for a given elevation angle θ is the modcod that closes the link budget for a propagation margin computed for θ and p for instance using ITU‐R Rec P.618‐10.…”

Section: System Scenario and Performance Metricsmentioning

confidence: 99%

Sizing and optimization of high throughput radio-frequency data down link of earth observation satellites

Jeannin

Dahman

2015

Int. J. Satell. Commun. Network.

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Summary This paper analyses the sizing of networks of radio‐frequency ground stations operating at Ka band or above for the reception of data acquired by low earth orbit observation satellites. In particular, the way to account for the use of adaptive transmission schemes, to cope with the high propagation impairments in the troposphere is detailed. A solution to size optimally the ground stations and satellite memory, relying on propagation channel simulations, is also proposed. The resulting performances are assessed in a latter stage using simulated propagation time series. Copyright © 2015 John Wiley & Sons, Ltd.

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Section: System Scenario and Performance Metricsmentioning

confidence: 99%

Sizing and optimization of high throughput radio-frequency data down link of earth observation satellites

Jeannin

Dahman

2015

Int. J. Satell. Commun. Network.

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“…Refs. [ 20 , 21 ] analyze the characteristics and link condition of the VCM system, while Ref. [ 22 ] focuses on comparing and analyzing different estimation algorithms of the received SNR of the ACM system.…”

Section: Introductionmentioning

confidence: 99%

A Transmission Efficiency Evaluation Method of Adaptive Coding Modulation for Ka-Band Data-Transmission of LEO EO Satellites

Wang

et al. 2022

Sensors

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Nowadays low Earth orbit (LEO) Earth observation (EO) satellites commonly use constant coding modulation (CCM) or variable coding modulation (VCM) schemes for data transmission to ground stations (G/S). Compared with CCM and VCM, the adaptive coding modulation (ACM) could further improve the data throughput of the link by making full use of link resource and the time-varying characteristics of atmospheric attenuation. In order to comprehensively study the data transmission performance, one new index which could be utilized as a quantitative index for the satellite-to-ground data transmission scheme selection, the transmission efficiency factor (TEF) of LEO satellites is proposed and defined as “the product of the link availability and the average useful data rate”. Then, the transmission efficiency of CCM, VCM and ACM at typical G/S with different weather characteristics at Ka-band is compared and analyzed. The results show that ACM is more suitable for the G/S with moderate and abundant rainfall. Compared with the CCM of MCS 28, for Beijing G/S and Sanya G/S, ACM not only improves the transmission efficiency with the TEF increased by 3.62% and 24.51%, respectively, but also improves the link availability with the outage period reduced by 82.47% and 75.18%, respectively.

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Effects of link availability on the achievable performance with variable coding modulation Earth Observation satellites

Cited by 2 publications

References 0 publications

Sizing and optimization of high throughput radio-frequency data down link of earth observation satellites

Sizing and optimization of high throughput radio-frequency data down link of earth observation satellites

A Transmission Efficiency Evaluation Method of Adaptive Coding Modulation for Ka-Band Data-Transmission of LEO EO Satellites

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