Point-to-Point Communication in Integrated Satellite-Aerial 6G Networks: State-of-the-Art and Future Challenges

Saeed, Nasir; Dahrouj, Hayssam; Al-Naffouri, Tareq Y.; Shamma, Jeff S.; Alouini, Mohamed‐Slim

doi:10.1109/ojcoms.2021.3093110

Cited by 95 publications

(45 citation statements)

References 136 publications

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“…Last but not least, emerging small satellite networks can play a major role in providing connectivity to the disaster struck regions [62]. In this context, several works have considered the use of satellites in disaster situations over the last decade [63]- [69].…”

Section: Using Space Networkmentioning

confidence: 99%

Post-Disaster Communications: Enabling Technologies, Architectures, and Open Challenges

Matracia¹,

Saeed²,

Kishk³

et al. 2022

Preprint

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The number of disasters has increased over the past decade where these calamities significantly affect the functionality of communication networks. In the context of 6G, airborne and spaceborne networks offer hope in disaster recovery to serve the underserved and to be resilient in calamities. Therefore, this paper surveys the state-of-the-art literature on post-disaster wireless communication networks and provides insights for the future establishment of such networks. In particular, we first give an overview of the works investigating the general procedures and strategies for counteracting any large-scale disasters. Then, we present the possible technological solutions for post-disaster communications, such as the recovery of the terrestrial infrastructure, installing aerial networks, and using spaceborne networks.Afterward, we shed light on the technological aspects of post-disaster networks, primarily the physical and networking issues. We present the literature on channel modeling, coverage and capacity, radio resource management, localization, and energy efficiency in the physical layer and discuss the integrated space-air-ground architectures, routing, delay-tolerant/software-defined networks, and edge computing in the networking layer. This paper also presents interesting simulation results which can provide practical guidelines about the deployment of ad hoc network architectures in emergency scenarios. Finally, we present several promising research directions, namely backhauling, placement optimization of aerial base stations, and the mobility-related aspects that come into play when deploying aerial networks, such as planning their trajectories and the consequent handovers.Maurilio Matracia and Mohamed-Slim Alouini are with the Computer, Electrical, and Mathematical Sciences and Engineering

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Section: Using Space Networkmentioning

confidence: 99%

Post-Disaster Communications: Enabling Technologies, Architectures, and Open Challenges

Matracia¹,

Saeed²,

Kishk³

et al. 2022

Preprint

Self Cite

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“…2) Spatial networks, where the communications links such as satellite-to-satellite (in the same or different orbits), HAP-to-HAP. The links in these layers can be established using both RF or FSO [97]. 3) Hybrid networks as the RF link is for the ground-to-air channel, and the FSO link is for the air-to-air path, and a hybrid RF/FSO system for the air-to-ground channel.…”

Section: Mixing Optical and Rf Links For Satellite Communicationmentioning

confidence: 99%

Retrofitting FSO Systems in Existing RF Infrastructure: A Non-Zero Sum Game Technology

Trichili¹,

Ragheb²,

Briantcev³

et al. 2021

Preprint

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Progress in optical wireless communication (OWC) has unleashed the potential to transmit data in an ultra-fast manner without incurring large investments and bulk infrastructure. OWC includes wireless data transmissions in three optical sub-bands; ultraviolet, visible, and infrared. This paper discusses installing infrared OWC, known as free space optics (FSO), systems on top of installed radio frequency (RF) networks for outdoor applications to benefit from the reliability of RF links and the unlicensed broad optical spectrum, and the large data rates carried by laser beams propagating in free space. We equally review commercially available solutions and the hardware requirements for RF and FSO technology co-existence. The potential of hybrid RF/FSO for space communication is further discussed. Finally, open problems and future research directions are presented.

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“…On the other hands, providing an alternative terrestrial wireless backhaul connectivity encounters serious challenges, including creating a line of sight (LoS) between the disaster area to the nearest core network, especially in forest and mountainous areas [4]. Due to their unique capabilities such as flexibility, maneuverability, and adaptive altitude adjustment, unmanned aerial vehicles (UAVs) acting as networked flying platforms (NFPs) can be considered as a promising solution to provide a temporary wireless backhaul connectivity while improving reliability of backhaul operations [5]- [7]. More recently, millimeter wave (mmWave) backhauling has been proposed as a promising approach for aerial communications because of three reasons.…”

Section: Introductionmentioning

confidence: 99%

Enabling Long mmWave Aerial Backhaul Links via Fixed-Wing UAVs: Performance and Design

Dabiri¹,

Hasna²,

Khattab³

2022

Preprint

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We propose a fixed wing unmanned aerial vehicles (UAV)-based millimeter wave (mmWave) backhaul links, that is offered as a cost effective and easy to deploy solution, to connect a disaster or remote area to the nearest core network. First, we fully characterize the single relay fixed-wing UAVbased communication system by taking into account the effects of realistic physical parameters, such as the UAV's circular path, critical points of the flight path, heights and positions of obstacles, flight altitude, tracking error, the severity of UAV's vibrations, the real 3D antenna pattern, mmWave atmospheric channel loss, temperature and air pressure. Second, we derive the distribution of the signal-to-noise ratio (SNR) metric, which is based on the sum of a series of Dirac delta functions. Using the SNR distribution, we derive closed-form expressions for the outage probability and the ergodic capacity of the considered system as a function of all system parameters. To provide an acceptable quality of service for longer link lengths, we extend the analytical expressions to a multi-relay system. The accuracy of the closed-form expressions are verified by Monte-Carlo simulations. Finally, by providing sufficient simulation results, we investigate the effects of key channel parameters such as antenna pattern gain and flight path on the performance of the considered system; and we carefully analyze the relationships between these parameters in order to maximize the average channel capacity.

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Point-to-Point Communication in Integrated Satellite-Aerial 6G Networks: State-of-the-Art and Future Challenges

Cited by 95 publications

References 136 publications

Post-Disaster Communications: Enabling Technologies, Architectures, and Open Challenges

Post-Disaster Communications: Enabling Technologies, Architectures, and Open Challenges

Retrofitting FSO Systems in Existing RF Infrastructure: A Non-Zero Sum Game Technology

Enabling Long mmWave Aerial Backhaul Links via Fixed-Wing UAVs: Performance and Design

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