Advanced commercial satellite systems technology for protected communications

Wilcoxson, Don

doi:10.1109/milcom.2011.6127661

Cited by 8 publications

(1 citation statement)

References 4 publications

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“…The current telecommunications marketplace is experiencing an ever increasing demand for high‐speed services, and the traffic demand for satellite broadband is expected to grow six‐fold by 2020 1 . Nowadays, large geostationary orbit (GEO) satellites can offer capacities up to 260 Gbps 2‐4 . The digital agenda of the European Commission aims to provide to all European households Internet rates above 30 Mbps, with at least 50% of the users accessing 100 Mbps or more 5 .…”

Section: Introductionmentioning

confidence: 99%

Link budget assessment for GEO feeder links based on optical technology

Barrios

Dimitrov

Calvo

et al. 2020

Satell Commun Network

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Summary Nowadays, large geostationary orbit (GEO) satellites can offer capacities up to 260 Gbps. In the midterm, in order to cope with the forecasted traffic demand, multibeam high throughput satellite systems are already being deployed. Optical GEO feeder link technology may provide transmission data rates up to the order of several terabits per second by making use of wavelength division multiplexing schemes. This work identifies physical layer techniques that enable the transmission of DVB‐S2X RF modulated signals over optical carriers. The techniques reported here are the analog transparent (AT), digital transparent (DT), and the digital regenerative schemes, which require different satellite payload architectures. The effects of atmospheric turbulence over the traveling wave are addressed and discussed, along with a methodology to calculate the link budget in the feeder uplink channel. Link budget calculations for two different selected ground station locations are presented, for the both the AT and DT options. It is shown that for high altitude locations, the transmission using the AT and DT options works well. For midaltitude locations, typical 36 MHz signal are feasible, whereas for higher bandwidths, the DT option could work when an error correction code is used.

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Section: Introductionmentioning

confidence: 99%

Link budget assessment for GEO feeder links based on optical technology

Barrios

Dimitrov

Calvo

et al. 2020

Satell Commun Network

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Performance, cost analysis, and ground segment design of ultra high throughput multi‐spot beam satellite networks applying different capacity enhancing techniques

Katona

Clazzer

Shortt

et al. 2016

Satell Commun Network

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SUMMARYThere is an ever present demand for increasingly higher data rates in multi-spot beam satellite networks. This can be enabled, by shifting carrier frequencies to higher bands, such as the Q/V-band, where more bandwidth is available. Furthermore, the available bandwidth has to be used as efficiently as possible, which requires efficient capacity enhancing techniques. The present paper identifies and analyzes ground segment capacity enhancing techniques for ultra high throughput multi-spot beam satellite networks operating in Q/V-band in the feeder link and in Ka-band in the user link. The impact of several capacity enhancing techniques on system performance is analyzed using a realistic time step-based system simulator. Their impact on the ground segment costs is also analyzed. The examined capacity enhancing techniques are as follows: (i) reduced carrier spacing with adjacent channel interference cancellation; (ii) full frequency reuse with co-channel interference cancellation and scheduling; (iii) four different smart gateway diversity techniques and; (iv) employing optical feeder links as an alternative to radio frequency feeder links. The paper shows that these techniques are capable of improving system performance at the expense of an increase in cost related to the complexity and maturity of the applied capacity-increasing technique.

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Satellite Telecommunications in the Military: Advantages, Limitations and the Networking Challenge

Katsoulis¹

2014

Applications of Mathematics and Informatics in Science and Engineering

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Advanced commercial satellite systems technology for protected communications

Cited by 8 publications

References 4 publications

Link budget assessment for GEO feeder links based on optical technology

Link budget assessment for GEO feeder links based on optical technology

Performance, cost analysis, and ground segment design of ultra high throughput multi‐spot beam satellite networks applying different capacity enhancing techniques

Satellite Telecommunications in the Military: Advantages, Limitations and the Networking Challenge

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