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

Abstract

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.

Precoding in Multibeam Satellite Communications: Present and Future Challenges

“…1 The projection of the beam generation process on Earth by the satellite allows for different information streams at different rates sent towards each beam separately, combined with adaptive coding and modulation (ACM) to match the underlying channel conditions. However, reusing the frequency over the multiple spot beams generates co-channel interference among adjacent ones.…”

Power Control for Satellite Uplink and Terrestrial Fixed-Service Co-Existence in Ka-Band

“…The relatively new High Throughput Satellites (HTS) operating in Ka-band, like Eutelsats KaSat, VIASAT 1 and SES-12, have been shown to provide system capacity up to 100 Gbps, which is still far from the challenging objectives set forth by the European Commission. In particular, it is foreseen that each user will demand 30-40 Mbps and even up to 100 Mbps by 2020, mainly as a result of the expected Internet and video demand growth [3]. The main limiting factor in providing these user rates is the exclusive spectrum assigned to Fixed Satellite Service (FSS), which is of 500 MHz in both the up and downlinks.…”

Resource Allocation for Cognitive Satellite Communications With Incumbent Terrestrial Networks

“…Clearly, the use of resource allocation techniques in this scenario provides overall satellite throughput of the order of 870 Gbps, which is close to the next generation High Throughput Satellite (HTS) terabit system requirements [5].…”

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