Key issues and technologies for a Terabit/s satellite

Evans, B.G.; Thompson, P. T.

doi:10.2514/6.2010-8713

Cited by 25 publications

(26 citation statements)

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“…It was expected that the interference for these beams would be higher than those at the edges because they are surrounded by more GES's, and this is observed in the results. As can be seen, the C/I is quite high and above the 20 dB level considered in , with an average of 29 dB, indicating good isolation between the gateway beams. Moreover, it can be concluded that the interference is not a limiting factor in this case for the forward GES links and by implication also for the return link.…”

Section: Design Of the Gateway Systemmentioning

confidence: 84%

A terabit/second satellite system for European broadband access: a feasibility study

Kyrgiazos

Evans

Thompson

et al. 2014

Satell Commun Network

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SUMMARYThis paper presents a feasibility study for a fixed broadband access High Throughput Satellite terabit/second system by considering appropriate state‐of‐the‐art communication technologies. For the investigated system model, DVB‐S2 and DVB‐RCS2 are assumed as the air interfaces for the forward and return link, respectively. The performance of DVB‐S2 and DVB‐RCS2 Adaptive Coding and Modulation is examined along with potential extensions of these standards. For example, the performance of very low rate DVB‐RCS turbo codes are investigated and their performance is evaluated. In addition, a performance comparison for M‐ary (M=16, 32, 64) constellations in the presence of a linear and a high power amplifier non‐linear channel is carried out. Various frequency reuse schemes and different antenna models are also considered, and their performance is analyzed and evaluated. It is demonstrated that, by using the Q/V (40/50 GHz) bands for the gateways and the Ka (20–30 GHz) band for the user terminals, around 20 gateways and 200 beams are required to provide with the proposed satellite system terabit/second capacity. The obtained performance evaluation results have shown that the forward link is limited by noise rather than interference, whereas the return link is interference limited. Additionally, some further aspects of the system design in relation with the total number of gateways and the payload are discussed. Copyright © 2014 John Wiley & Sons, Ltd.

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Section: Design Of the Gateway Systemmentioning

confidence: 84%

A terabit/second satellite system for European broadband access: a feasibility study

Kyrgiazos

Evans

Thompson

et al. 2014

Satell Commun Network

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“…Q/V and their characterization [51] or even W band [52]. The use of smart gateway schemes which switch traffic around a network of gateways may also prove necessary to achieve availabilities in the Ka/Q/V bands [53] and possibly the future use of optical satellite links and optical technology on board satellites [54] [55]. For all systems, the satellite multi beam antenna is a crucial item and especially for mobile systems at L/S/C bands where very large deployable antennas are needed (currently circa 20m diameter).…”

Section: Conclusion and Future Of Satellite Communicationsmentioning

confidence: 99%

1945–2010: 65 Years of Satellite History From Early Visions to Latest Missions

et al. 2011

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“…Even if bandwidth‐efficient modulation schemes can be used to achieve larger throughputs, they require more power, which is a limited resource on board of satellites. On the other hand, higher capacity for the feeder links can also be achieved by using higher bands, like Q/V, where a large part of the spectrum is allocated to fixed satellite services .…”

Section: Introductionmentioning

confidence: 99%

The Alphasat Aldo Paraboni propagation experiment: Measurement campaign at the Italian ground stations

Riva

Luini

D’Amico

et al. 2018

Satell Commun Network

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Summary Terabit capacity and very high data rates are required for the near‐future broadband satellite communication systems, mainly for multimedia services. The increased capacity can be obtained by using the larger bandwidth available at higher frequency bands, like Ka and Q/V. However, severe detrimental atmospheric effects impair radio waves at these bands, which require the extensive use of fade mitigation techniques, such as link power control, site diversity, or on‐board adaptive power allocation. The Alphasat Aldo Paraboni propagation experiment was designed and supported by the Italian Space Agency, and implemented by the European Space Agency, to better characterize the atmospheric propagation channel at Ka band and Q band, to support the design of future satellite systems. In Italy, 3 ground stations have been installed and are acquiring the Alphasat beacon signals: the 2 ASI main ground stations in Tito Scalo (Southern Italy) and Spino d'Adda (Northern Italy) and the La Sapienza‐FUB station in Roma (Central Italy). The 3 stations cover quite distant locations in Italy, with different climatic characteristics. This paper describes the main features of the experimental setup in the above stations and presents some examples of measurements and results.

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Key issues and technologies for a Terabit/s satellite

Cited by 25 publications

References 1 publication

A terabit/second satellite system for European broadband access: a feasibility study

A terabit/second satellite system for European broadband access: a feasibility study

1945–2010: 65 Years of Satellite History From Early Visions to Latest Missions

The Alphasat Aldo Paraboni propagation experiment: Measurement campaign at the Italian ground stations

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