Energy-efficiency maximization for fixed-wing UAV-enabled relay network with circular trajectory

Xie, Chenxiao; Huang, Xin-Lin

doi:10.1016/j.cja.2021.12.001

Cited by 10 publications

(6 citation statements)

References 23 publications

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“…In the system, the decision-maker role is in charge of the FC, an entity running in the CS to coordinate takeoff of the ready UAVs. To this purpose, the FC takes its decisions by using the best management policy found thanks to RL [41].…”

Section: Reference System Description and Assumptionsmentioning

confidence: 99%

Green Edge Intelligence for Smart Management of a FANET in Disaster-Recovery Scenarios

Faraci

Rizzo

Schembra

2023

IEEE Trans. Veh. Technol.

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Disruption of the ground communication infrastructure in emergency scenarios makes post-disaster rescue operations very complicate. This paper proposes to use edge intelligence to support rescue operators in managing these emergency scenarios. A set of Unmanned Aerial Vehicles (UAV), organized as Flying Ad-Hoc network (FANET), autonomously takeoff and land to provide emergency operators with edge computing services. A charging station for batteries is supplied by a renewable-energy generator. The FANET Controller applies model-based Reinforcement Learning to decide how many UAVs have to take off, according to the current edge-computing service requests and the power availability, and a forecast of them. The optimal management policy has to provide the necessary level of edge-computing avoiding wide use of satellite channels in a short-time horizon during low green-energy generation and high service request periods. Results highlight that the optimal policy is an efficient modification of the greedy one, i.e. the policy enabling the takeoff of all the necessary UAVs without being care of challenging events in the future. A deep analysis has revealed that the level of modification depends on the combination of the edge-computing service request and the green power availability.

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Section: Reference System Description and Assumptionsmentioning

confidence: 99%

Green Edge Intelligence for Smart Management of a FANET in Disaster-Recovery Scenarios

Faraci

Rizzo

Schembra

2023

IEEE Trans. Veh. Technol.

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“…This is because fixed-wing UAVs rely on a much more energy-efficient way of flight in contrast to the rotary-wing UAVs [97]. Xie and Huang [98] evaluated an UAV-enabled relaying network where a fixedwing UAV is positioned between the base station and ground users. The authors proposed a method to optimize the radius of UAV circular trajectory along with the transmission power allocated with the purpose of maximizing energy-efficiency of the UAV relay network.…”

Section: ) Fixed-wing Uavsmentioning

confidence: 99%

Unmanned Aerial Vehicle Communications for Civil Applications: A Review

et al. 2022

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The use of drones, formally known as unmanned aerial vehicles (UAVs), has significantly increased across a variety of applications over the past few years. This is due to the rapid advancement towards the design and production of inexpensive and dependable UAVs and the growing request for the utilization of such platforms particularly in civil applications. With their intrinsic attributes such as high mobility, rapid deployment and flexible altitude, UAVs have the potential to be utilized in many wireless system applications. On the one hand, UAVs are able to operate as flying mobile terminals within wireless/cellular networks to support a variety of missions such as goods delivery, search and rescue, precision agriculture monitoring, and remote sensing. On the other hand, UAVs can be utilized as aerial base stations to increase wireless communication coverage, reliability, and the capacity of wireless systems without additional investment in wireless systems infrastructure. The aim of this article is to review the current applications of UAVs for civil and commercial purposes. The focus of this paper is on the challenges and communication requirements associated with UAV-based communication systems. This article initially classifies UAVs in terms of various parameters, some of which can impact UAVs' communication performance. It then provides an overview of aerial networking and investigates UAVs routing protocols specifically, which are considered as one of the challenges in UAV communication. This article later investigates the use of UAV networks in a variety of civil applications and considers many challenges and communication demands of these applications. Subsequently, different types of simulation platforms are investigated from a communication and networking viewpoint. Finally, it identifies areas of future research.

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“…Owing to the unique advantages, UAVs are frequently utilized as airborne base stations and aerial relays in the communication field to establish wide-area coverage connection, giving users access to reliable, timely, and ondemand communication services [13][14][15][16][17]. The connectivity of heterogeneous users faces significant difficulties because of their incompatible communication systems.…”

Section: Introductionmentioning

confidence: 99%

“…The communication relay technology [10][11][12] can offer effective answers to these problems. From the perspective of the causes behind the requirement for relaying, it can be said that communication relay technology addresses two main connectivity issues: the first is the connectivity issue of overthe-horizon communication, and the second is the connectivity issue of incompatible communication systems.Owing to the unique advantages, UAVs are frequently utilized as airborne base stations and aerial relays in the communication field to establish wide-area coverage connection, giving users access to reliable, timely, and ondemand communication services [13][14][15][16][17]. The connectivity of heterogeneous users faces significant difficulties because of their incompatible communication systems.…”

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confidence: 99%

Multi-UAV Relay Connectivity Optimization for Heterogeneous Users Based on Load Balancing and Throughput Maximization

Pan

2023

IEEE Access

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By relaying messages between users, unmanned aerial vehicles (UAVs), which are frequently utilized in the communication industry, can be used as airborne communication relays to resolve connectivity problems. In order to effectively connect a large number of heterogeneous users dispersed on the ground, we deploy a large number of UAVs for reliable relay coverage and message transmission between users. We initially put forth a relay coverage algorithm that continuously optimizes the position of UAVs and the cell division of terrestrial users in order to provide users with full coverage. Second, we study several relay message forwarding methods between UAVs while taking into account the features of heterogeneous users. A relay selection method, which takes the relay link throughput as the optimization goal, is proposed to ensure full connectivity between UAVs. Finally, we contrast and analyze how various relay forwarding methods affect the effectiveness of the relay network. The experimental results demonstrate that the proposed relay coverage algorithm can balance the UAV relay load better and reduce transmission delay, while the suggested relay selection strategy can minimize the number of isolated UAVs and maximize the throughput of UAV relay links.INDEX TERMS UAV, relay connectivity, heterogeneous users, relay message forwarding, load balancing, throughput. I. INTRODUCTIONDue to their low cost and flexible deployment, UAVs [1,2] have found extensive usage in the military, civil, and commercial fields for operations like swarm operation [3], emergency rescue [4], and security [5]. For instance, when the ground-based communication infrastructure is destroyed by the natural disaster, UAVs can be used to establish temporary communication links to support rescue operations.It can be seen that connectivity issue is a major concern for ensuring that users have reliable communication links. Users that are unable to contact directly can still establish connections by forwarding messages owing to the communication relay [6][7][8][9]. Direct communication is actually prevented by a wide range of barriers, including over-thehorizon communication that occurs outside the connection range, link interruption due to interference in complex situations, incompatible communication systems that prevent direct communication between heterogeneous users, and so on. The communication relay technology [10][11][12] can offer effective answers to these problems. From the perspective of the causes behind the requirement for relaying, it can be said that communication relay technology addresses two main connectivity issues: the first is the connectivity issue of overthe-horizon communication, and the second is the connectivity issue of incompatible communication systems.Owing to the unique advantages, UAVs are frequently utilized as airborne base stations and aerial relays in the communication field to establish wide-area coverage connection, giving users access to reliable, timely, and ondemand communication services [13][14][15][16][17]. ...

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Energy-efficiency maximization for fixed-wing UAV-enabled relay network with circular trajectory

Cited by 10 publications

References 23 publications

Green Edge Intelligence for Smart Management of a FANET in Disaster-Recovery Scenarios

Green Edge Intelligence for Smart Management of a FANET in Disaster-Recovery Scenarios

Unmanned Aerial Vehicle Communications for Civil Applications: A Review

Multi-UAV Relay Connectivity Optimization for Heterogeneous Users Based on Load Balancing and Throughput Maximization

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