Use cases and scenarios of 5G integrated satellite‐terrestrial networks for enhanced mobile broadband: The SaT5G approach

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One of the key performance targets on the European Commission's Digital Agenda is to provide at least 30 Mbit/s broadband coverage to all European households by 2020. The deployment of existing terrestrial technologies will not be able to satisfy the requirements in the most difficult-to-serve locations, either due to a lack of coverage in areas where the revenue potential for terrestrial service providers is too low, or due to technological limitations that diminish the available throughput in rural environments. In this paper we investigate a hybrid broadband system combining satellite and terrestrial access networks. The system design and the key building blocks of the intelligent routing entities (referred to as intelligent gateways) are presented. To justify the hybrid broadband system's performance subjectively, lab trials have been performed with an integrated multiple access network emulator and a variety of typical multimedia applications that have varying requirements. The results of the lab trials suggest that the Quality of Experience is consistently improved thanks to the utilisation of intelligent gateway devices, when compared to using a single access network at a time.

Section: Review Of Hybrid Broadband Networkmentioning

confidence: 99%

Context‐aware hybrid satellite‐terrestrial broadband access

Ekmekcioǧlu

Evans

Kondoz

et al. 2018

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“…Nowadays, there are many space projects has emphasized that satellite systems can be used as a section of the 5G infrastructure. For example, shared access satellite‐terrestrial backhaul network enabled by smart antennas (SANSA), virtualized hybrid satellite‐terrestrial systems for resilient and flexible future networks (VITAL), and 5GCHAMPION for 5G communications …”

Section: Introductionmentioning

confidence: 99%

Interference management for spectral coexistence in a heterogeneous satellite network

Hajipour

Shahzadi

Ghazi‐Maghrebi

2020

Summary With the advent of the fifth generation of mobile radio communication by 2020, there will be many challenges such as increasing service demand with low delay in providing billions of end users called the satellite mobile users. It is expected that terrestrial communication systems will be faced with a dense network having many small cells anywhere and anytime. Therefore, there are some remote regions in the world where terrestrial systems cannot provide any services to end users. Furthermore, because of lack of spectral resources, it is very important that the spectrum is shared between satellite systems and terrestrial equipment by a suitable solution to interference management. In this paper, a heterogeneous satellite network that includes low earth orbit (LEO) satellite constellation and terrestrial equipment is proposed to provide low delay services. In this type of structure, interference management based on transmission power control between LEO satellite systems and mobile users is very important for obtaining high throughput. Moreover, in order to mitigate interference, transmission power control is shown based on noncooperative Stackelberg game under many subgames through pricing‐based algorithm and convex optimization method. Finally, the simulation results show that the performance of this study's system model will be improved through the proposed algorithm.

“…Seamlessly interfacing terrestrial with nonterrestrial networks is part of the beyond 5G vision, as summarized, for example, in Latva‐aho and Leppänen . In this context, developments that parallel the evolution to 5G terrestrial systems have also been under study in SatCom, including a key component of the envisioned air interface, namely waveforms . Early studies on how do 5G candidate waveforms perform in the presence of typical satellite channel impairments include previous works …”

Section: Introductionmentioning

confidence: 99%

Filter bank‐based multiple access in next‐generation satellite uplinks: A DVB‐RCS2‐based experimental study

Dalakas

Kofidis

2020

In the context of the on-going evolution of satellite communications (SatCom) systems to their next generation, and in the direction of their integration with fifth generation (5G) terrestrial networks, it is of interest to study in depth the applicability in realistic SatCom of waveforms that have shown promise to meet the 5G requirements. This paper presents a comparative study, based on total degradation (TD) over a range of output back-off (OBO) values, on out-of-band emission and spectral efficiency, of frequency division multiple access (FDMA) schemes employing offset quadrature amplitude modulation-based filter bank multi-carrier (FBMC /OQAM), classical orthogonal FDMA (OFDMA), and their single-carrier counterparts to illustrate the potential gains from the integration of the FBMC waveforms in the satellite context and standards. The air interface simulated follows the digital video broadcasting (DVB) family of standards for the satellite uplink, considering both time and frequency synchronization impairments and two typical input constellations. Our results confirm the superiority of the single-carrier (SC) schemes in such a nonlinear environment. The SC-FBMC waveform is shown to be the most practical candidate since it is shown to attain a TD performance similar to that of SC-OFDM at absolutely no cost in spectral efficiency.