Resource and Placement Optimization for Multiple UAVs using Backhaul Tethered Balloons

Alzidaneen, Ala; Alsharoa, Ahmad; Alouini, Mohamed‐Slim

doi:10.1109/lwc.2019.2961906

Cited by 37 publications

(15 citation statements)

References 18 publications

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“…Furthermore, in scenarios where the WSN location is not covered by any HAPS node, tethered balloons (TBs) can be used to connect the WSN (and other ground users and networks) to the HAPS network. TBs were proposed in several works as a means for connecting multiple ground sources (Alsamhi et al, 2020;Alzidaneen et al, 2019). As shown in Figure 1, in the absence of HAPS connectivity, TBs play an essential role in connecting the ground users and networks to the HAPS cloud.…”

Section: Opportunities In Cloud-enabled High-altitude Platform Systemmentioning

confidence: 99%

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Cloud-Enabled High-Altitude Platform Systems: Challenges and Opportunities

et al. 2021

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Augmenting ground-level communications with flying networks, such as the high-altitude platform system (HAPS), is among the major innovative initiatives of the next generation of wireless systems (6G). Given HAPS quasi-static positioning at the stratosphere, HAPS-to-ground and HAPS-to-air connectivity frameworks are expected to be prolific in terms of data acquisition and computing, especially given the mild weather and quasi-constant wind speed characteristics of the stratospheric layer. This paper explores the opportunities stemming from the realization of cloud-enabled HAPS in the context of telecommunications applications and services. The paper first advocates for the potential physical advantages of deploying HAPS as flying data-centers, also known as super-macro base stations. The paper then describes various cloud services that can be offered from the HAPS and the merits that can be achieved by this integration, such as enhancing the quality, speed, and range of the offered services. The proposed services span a wide range of fields, including satellites, Internet of Things (IoT), ad hoc networks (such as sensor; vehicular; and aerial networks), gaming, and social networks. For each service, the paper illustrates the methods that would be used by cloud providers to offload the service data to the HAPS and enable the cloud customers to consume the service. The paper further sheds light on the challenges that need to be addressed for realizing practical cloud-enabled HAPS, mainly, those related to high energy, processing power, quality of service (QoS), and security considerations. Finally, the paper discusses some open issues on the topic, namely, HAPS mobility and message routing, HAPS security via blockchain and machine learning, artificial intelligence-based resource allocation in cloud-enabled HAPS, and integration with vertical heterogeneous networks.

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Section: Opportunities In Cloud-enabled High-altitude Platform Systemmentioning

confidence: 99%

Section: ) Opportunities In Cloud-enabled Hapsmentioning

confidence: 99%

Cloud-Enabled High-Altitude Platform Systems: Challenges and Opportunities

et al. 2021

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“…They studied a problem of finding the placement locations of UAVs such that the energy consumption of the UAVs is minimized, where each user has a minimum data rate. Also, Alzidaneen et al [2] considered a network that consists of UAVs and tethered balloons, where UAVs can communicate with ground users while UAVs access the Internet by directly communicating with the balloons. It can be seen that the coverage area of the network is limited, since UAVs must be within the communication range of the tethered balloons.…”

Section: Related Workmentioning

confidence: 99%

Throughput Maximization of UAV Networks

Sun

Zou

et al. 2021

Preprint

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In this paper we study the deployment of multiple unmanned aerial vehicles (UAVs) to form a temporal UAV network for the provisioning of emergent communications to affected people in a disaster zone, where each UAV is equipped with a lightweight base station device and thus can act as an aerial base station for users. Unlike most existing studies that assumed that a UAV can serve all users in its communication range, we observe that both computation and communication capabilities of a single lightweight UAV are very limited, due to various constraints on its size, weight, and power supply. Thus, a single UAV can only provide communication services to a limited number of users. We study a novel problem of deploying K UAVs in the top of a disaster area such that the sum of the data rates of users served by the UAVs is maximized, subject to that (i) the number of users served by each UAV is no greater than its service capacity; and (ii) the communication network induced by the K UAVs is connected. We then propose a-approximation algorithm for the problem, improving the current best result of the problem by five times (the best approximation ratio so far is)), where e is the base of the natural logarithm. We finally evaluate the algorithm performance via simulation experiments. Experimental results show that the proposed algorithm is very promising. Especially, the solution delivered by the proposed algorithm is up to 12% better than those by existing algorithms.

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“…In a recent work of ours [10], we proposed a downlink resourceallocation solution of integrated satellites, HAPs, and GBSs based on OFDMA to maximize user throughput considering back-hauling and access-link constraints. In another work [11], we proposed using TBs connected with optical fibers as backhauling stations to support ground users.…”

Section: Introductionmentioning

confidence: 99%

Facilitating Satellite-Airborne-Balloon-Terrestrial Integration for Dynamic and Infrastructure-less Networks

Alsharoa¹,

Alouini²

2021

Preprint

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This magazine investigates the potential enhancement of the data throughput of ground users by integrating ground base stations (GBS) with air stations, such as balloon, airborne, and satellite. The objective is to establish dynamic bidirectional wireless services (i.e., uplink and downlink) for ground users in congested and remote areas. The proposed integration involves satellite, high-altitude platforms (HAPs), and tethered balloons (TBs) in the exosphere, stratosphere, and troposphere, respectively, for better altitude reuse coupled with emerging optical or other high-frequency directional transceivers. This will lead to a significant enhancement in scarce spectrum aggregate efficiency. However, the air stations deployment and resource managements in this integrated system faces difficulties. This article tackles resource management challenges by (i) providing wireless services to ground users in remote areas and connecting them with metropolitan and rural areas and (ii) employing HAPs equipped with free-space-optical communication modules as back-hauling backbones. Finally, we illustrate some numerical results to show the benefit of our proposed integrated system.

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Resource and Placement Optimization for Multiple UAVs using Backhaul Tethered Balloons

Cited by 37 publications

References 18 publications

Cloud-Enabled High-Altitude Platform Systems: Challenges and Opportunities

Cloud-Enabled High-Altitude Platform Systems: Challenges and Opportunities

Throughput Maximization of UAV Networks

Facilitating Satellite-Airborne-Balloon-Terrestrial Integration for Dynamic and Infrastructure-less Networks

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