A Novel Dynamic Spectrum-Sharing Method for GEO and LEO Satellite Networks

Wang, Yunfeng; Ding, Xiaojin; Zhang, Gengxin

doi:10.1109/access.2020.3015487

Cited by 19 publications

(8 citation statements)

References 40 publications

(23 reference statements)

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“…This approach aims at optimising the throughput of LEO satellites under the premise that the QoS of GSO satellite is guaranteed. Further, a spectrum-sharing framework is designed in [225] where LEO system can work concurrently with GSO systems in the interference region by accessing the shared spectrum in both overlay and underlay modes. In [226], the flexibility of LEO beam hopping satellites is utilized in a spectrum sharing scenario where an LEO satellite constellation system is considered as a secondary system to share the spectrum resources of a GSO satellite.…”

Section: System and Architectural Aspectsmentioning

confidence: 99%

A Survey on Nongeostationary Satellite Systems: The Communication Perspective

Al-Hraishawi

Chougrani

Kisseleff

et al. 2023

IEEE Commun. Surv. Tutorials

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The next phase of satellite technology is being characterized by a new evolution in non-geostationary orbit (NGSO) satellites, which conveys exciting new communication capabilities to provide non-terrestrial connectivity solutions and to support a wide range of digital technologies from various industries. NGSO communication systems are known for a number of key features such as lower propagation delay, smaller size, and lower signal losses in comparison to the conventional geostationary orbit (GSO) satellites, which can potentially enable latency-critical applications to be provided through satellites. NGSO promises a substantial boost in communication speed and energy efficiency, and thus, tackling the main inhibiting factors of commercializing GSO satellites for broader utilization. The promised improvements of NGSO systems have motivated this paper to provide a comprehensive survey of the state-of-theart NGSO research focusing on the communication prospects, including physical layer and radio access technologies along with the networking aspects and the overall system features and architectures. Beyond this, there are still many NGSO deployment challenges to be addressed to ensure seamless integration not only with GSO systems but also with terrestrial networks. These unprecedented challenges are also discussed in this paper, including coexistence with GSO systems in terms of spectrum access and regulatory issues, satellite constellation and architecture designs, resource management problems, and user equipment requirements. Finally, we outline a set of innovative research directions and new opportunities for future NGSO research.

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Section: System and Architectural Aspectsmentioning

confidence: 99%

A Survey on Nongeostationary Satellite Systems: The Communication Perspective

Al-Hraishawi

Chougrani

Kisseleff

et al. 2023

IEEE Commun. Surv. Tutorials

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show abstract

“…Interference to and from the aerial platforms increases significantly with altitude, until of course at very high altitude when the signals from space become very weak. Going to higher altitude platforms, [372] proposed a dynamic spectrum sharing method for LEO and GEO satellites. A survey on data-based aided spectrum sharing for satellite networks can be found in [373].…”

Section: Technological Enablersmentioning

confidence: 99%

Evolution of Non-Terrestrial Networks From 5G to 6G: A Survey

Azari

Solanki

Chatzinotas

et al. 2022

IEEE Commun. Surv. Tutorials

181

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Non-terrestrial networks (NTNs) traditionally have certain limited applications. However, the recent technological advancements and manufacturing cost reduction opened up myriad applications of NTNs for 5G and beyond networks, especially when integrated into terrestrial networks (TNs). This article comprehensively surveys the evolution of NTNs highlighting their relevance to 5G networks and essentially, how it will play a pivotal role in the development of 6G ecosystem. We discuss important features of NTNs integration into TNs and the synergies by delving into the new range of services and use cases, various architectures, technological enablers, and higher layer aspects pertinent to NTNs integration. Moreover, we review the corresponding challenges arising from the technical peculiarities and the new approaches being adopted to develop efficient integrated ground-air-space (GAS) networks. Our survey further includes the major progress and outcomes from academic research as well as industrial efforts representing the main industrial trends, field trials, and prototyping towards the 6G networks.

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“…Jointly optimizes the sensing interval and transmit power of LEO satellite to maximize the throughput while ensuring the interference constraints of GEO SCSs. [146] 2020…”

Section: Cognitive Radiomentioning

confidence: 99%

“…Additionally, the authors of [146] conceived a two-stage spectrum-sharing framework by combining the advantages of cognitive radio and power control techniques. This framework jointly optimizes the spectrum sensing time and the LEO SCSs transmit power with the objective of enhancing the spectral efficiency and seamless coexistence.…”

mentioning

confidence: 99%