Optimizing Space-Air-Ground Integrated Networks by Artificial Intelligence

Kato, Nei; Fadlullah, Zubair Md.; Tang, Fengxiao; Mao, Bomin; Tani, Shuntaro; Okamura, Atsushi; Li, Jiajia

doi:10.1109/mwc.2018.1800365

Cited by 329 publications

(129 citation statements)

References 16 publications

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“…In the past couple of years, multiple research works have investigated a combination of two radio access networks. The authors in [11] were the first to provide a review on Space-Air-Ground Integrated Networks (SAGIN), where the system performance has been improved by exploiting deep learning methods for traffic balancing purposes [64].…”

Section: Non-terrestrial Network In 5g Systemsmentioning

confidence: 99%

Non-Terrestrial Networks in 5G & Beyond: A Survey

et al. 2020

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Fifth-generation (5G) telecommunication systems are expected to meet the world market demands of accessing and delivering services anywhere and anytime. The Non-Terrestrial Network (NTN) systems are able to satisfy the requests of anywhere and anytime connections by offering wide-area coverage and ensuring service availability, continuity, and scalability. In this work, we review the 3GPP NTN features and their potential for satisfying the user expectations in 5G & beyond networks. The state of the art, current 3GPP research activities, and open issues are summarized to highlight the importance of NTN over the wireless communication landscape. Future research directions are also identified to assess the role of NTN in 5G and beyond systems.

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Section: Non-terrestrial Network In 5g Systemsmentioning

confidence: 99%

Non-Terrestrial Networks in 5G & Beyond: A Survey

et al. 2020

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“…On the contrary, satellite networks could simultaneously connect with all the nodes within its coverage area, due to the features of broadcast and long-range coverage. Furthermore, the coordination between satellites and terrestrial networks has been attracting increasing research interests, leading to the promising space-air-ground integrated network [13,14], which has opened up a new way for agile global broadband coverage. In practice, some applications, such as Blockstream [15], have tentatively used satellite communications in blockchains.…”

Section: Coordinated Satellite-terrestrial Network For Blockchainsmentioning

confidence: 99%

Creating Efficient Blockchains for the Internet of Things by Coordinated Satellite-Terrestrial Networks

Wei

Feng

Zhang

et al. 2020

IEEE Wireless Commun.

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Blockchain has emerged as a promising technology that can guarantee data consistency and integrity among distributed participants. It has been used in many applications of the Internet of Things (IoT). However, since IoT applications often introduce a massive number of devices into blockchain systems, the efficiency of the blockchain becomes a serious problem. In this article, we analyze the key factors affecting the efficiency of blockchain. Unlike most existing solutions that handle this from the computing perspective, we consider the problem from the communication perspective. Particularly, we propose a coordinated satellite-terrestrial network to create efficient blockchains. We also derive a network scheduling strategy for the proposed architecture. Simulation results demonstrate that the proposed system can support blockchains for higher efficiency. Moreover, several open research issues and design challenges will be discussed.

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“…The development direction of TT&C and satellite data transmission is to build a Space-Air-Ground integrated network (SAGINs) [22], [23]. The network includes thousands of satellites and near earth vehicles.…”

Section: Case Analysismentioning

confidence: 99%

A Shared Satellite Ground Station Using User-Oriented Virtualization Technology

et al. 2020

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With the development of space missions, the increasing communication data volume, the diversity of mission-specific interfaces, and the growing security needs, the costs and system complexity of ground stations have increased. The architecture of the existing ground terminal is outdated and the operation and maintenance are labor-intensive, so the terminal components are unable to meet the demand of multi-satellite TT&C in the future. In this paper, a Shared Satellite Ground Station(SSGS) using user-oriented virtualization technology is proposed for coping with complex multi-satellite TT&C in the future. Based on a pool architecture, SSGS utilizes baseband processor virtualization and software-defined networking to implement resource sharing and a network that fuses high-speed and low-speed data streams with customization control. The case analysis verifies that when SSGS has a virtualization rate greater than 1, the execution rate of tasks is much larger than that of traditional ground stations. The case analysis also verifies that the virtualization rate of current commercial equipment is no less than 1.25 through equipment testing. INDEX TERMS Satellite ground station, baseband processor virtualization, software-defined network, TT&C. I. INTRODUCTION Ground stations are used for receiving payload data and Spacecraft telemetry, tracking, and command (TT&C). Traditional ground station networks generally belong to the government or the military, e.g.NASA's STDN (Spaceflight Tracking and Data Network), the United States' AFSCN (Air Force Satellite Control Network) and ESA's ESTRACK. Whereas with the development of civil and commercial aerospace, e.g. Space Imaging, Orbital Space Imaging, OneWeb and Planet Labs, more space launch missions and satellites in orbit have brought considerable challenges to ground stations, i.e. it is difficult for traditional ground station networks to provide flexible services for numerous commercial satellites. The contradiction between limited ground stations and the increasing demand has become increasingly prominent. Hence, the development of commercial ground stations becomes an inevitable trend [1], [2]. Civil and commercial ground station networks distributed around the world came into being. GENSO (Global Educational Network for Satellite Operations) is a network The associate editor coordinating the review of this manuscript and approving it for publication was Rosario Pecora. of university and amateur ground stations managed by ESA., which accommodates numerous ground stations and improves educational spacecraft communication[3]. NASA, JPL and the Center for EUV Astrophysics have evaluated a commercially available ground station for telemetry reception, processing, and routing of data over a commercial, secure data line[4]. SSC (Swedish Space Corporation)'s Pri-oraNet is a global ground station network consisting of a network management center, SSC's core stations, and cooperative stations all over the world. It provides reliable mission management, TT&C (Tracking, Telemetry ...

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Optimizing Space-Air-Ground Integrated Networks by Artificial Intelligence

Cited by 329 publications

References 16 publications

Non-Terrestrial Networks in 5G & Beyond: A Survey

Non-Terrestrial Networks in 5G & Beyond: A Survey

Creating Efficient Blockchains for the Internet of Things by Coordinated Satellite-Terrestrial Networks

A Shared Satellite Ground Station Using User-Oriented Virtualization Technology

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