Space-Air-Ground FSO Networks for High-Throughput Satellite Communications

Samy, Ramy; Yang, Hong-Chuan; Rakia, Tamer; Alouini, Mohamed‐Slim

doi:10.1109/mcom.002.2200018

Cited by 30 publications

(7 citation statements)

References 10 publications

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“…By optimizing system performance through solving non-convex problems, simulations demonstrate achievable rates for FSO links under atmospheric conditions while proving that the proposed joint optimization algorithm enhances system throughput. In [76], the authors integrate high-altitude platforms into an integrated air-ground communication system and propose a novel FSO transmission network. Ground stations impose restrictions on the selection of high-altitude platforms to mitigate the effects of atmospheric turbulence.…”

Section: Fso Of Istnsmentioning

confidence: 99%

ISAC towards 6G Satellite–Terrestrial Communications: Principles, Status, and Prospects

Gu,

Xu,

Feng

et al. 2024

Electronics

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With the evolution of fifth-generation (5G) to sixth-generation (6G) communication systems, the utilization of spectrum resources faces incremental challenges. Integrated sensing and communication (ISAC) technology, as a crucial element in 6G technology, is expected to enhance energy efficiency and spectrum utilization efficiency by integrating radar and communication signals, achieving environmental awareness, and enabling scene interconnection. Simultaneously, to realize the vision of seamless coverage in 6G, research on integrated satellite-terrestrial communication has been prioritized. To integrate the advantages, ISAC for integrated satellite–terrestrial networks (ISTNs) in 6G has emerged as a potential research direction. This paper offers an extensive overview of the present state of key technologies for ISAC and the development of ISTNs. Meanwhile, with a focus on the ISTN-oriented 6G ISAC system, several hotspot topics, including future application scenarios and key technological developments, are outlined and demonstrated.

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Section: Fso Of Istnsmentioning

confidence: 99%

ISAC towards 6G Satellite–Terrestrial Communications: Principles, Status, and Prospects

Gu,

Xu,

Feng

et al. 2024

Electronics

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“…Resource allocation [114], [115] UE offloading [116] Adaptive RF [117] Physical layer security [118] Integration with vehicular networks [119] Architecture for AI integration [120] General the mobile cells to the nearest eNB over the backhaul link, and to the neighboring mobile cells over the sidehaul link. The authors proposed algorithms to enable resource sharing between a mobile-cell, access link, sidehaul link and conventional cellular users taking into account interference caused by the wireless backhaul of mobile cells.…”

Section: Main Topicmentioning

confidence: 99%

“…In [117], the authors proposed the use of both radio and freespace optical frequencies in SAGIN. Freespace optical enjoys huge bandwidth, lower power consumption and unlicensed spectrum.…”

Section: ) Satellitementioning

confidence: 99%

Paving the Way Toward Mobile IAB: Problems, Solutions and Challenges

Monteiro

Lima

Moreira

et al. 2022

IEEE Open J. Commun. Soc.

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Deploying access and backhaul as wireless links, a.k.a. integrated access and backhaul (IAB), is envisioned as a viable approach to enable flexible and dense networks. Even further, mobile IAB (mIAB) is a candidate solution to enhance the connectivity of multiple user equipment (UE) moving together. In this context, different of other works from the literature, the present work overviews the basis for the deployment of mIAB by presenting: 1) the current status of IAB standardization in the fifth generation (5G) new radio (NR); 2) a new taxonomy for state-of-the-art works regarding fixed IAB and mIAB; 3) an extensive performance analysis of mIAB based on simulation results; and 4) open challenges and potential future prospects of mIAB. Specifically, the proposed taxonomy classifies IAB works according to different perspectives and categorizes mIAB works according to the type of mobile node. For each type of mobile node, the main studied topics are presented. Regarding the performance evaluation, we consider an urban macro scenario where mIAB nodes are deployed in buses in order to improve the passengers' connection. The results show that, compared to other network architectures, the deployment of mIAB nodes remarkably improves the passengers' throughput and latency in both downlink and uplink.

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“…In this context, a vertical expansion of the wireless network is also being prepared, namely resorting to Unmanned Aerial Vehicles (UAV), which have gained recent popularity due to their strategic positioning in the stratosphere [8]. This facilitates almost stationary and highly reliable LOS communication, mainly due to the absence of weather events in this region of operation [9]. Also fostered by the 3D network expansion that will be promoted by 6G, we are currently witnessing a rapidly growing interest in the exploitation of FSO systems to enhance the capacity of satellite communications [10], [11].…”

Section: Introductionmentioning

confidence: 99%