UAV Assisted Cellular Communications

Zhang, Hongliang; Song, Lingyang; Han, Zhu

doi:10.1007/978-3-030-33039-2_3

Cited by 5 publications

(3 citation statements)

References 30 publications

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“…The list of these applications is quite comprehensive with additions being made every now and then. UAVs are also used as pop-up mobile networks for emergency disaster response to provide temporary mobile coverage Butterworth-Hayes (2020); Zhang et al (2020). eVTOLs on the other hand have shown a lot of promise and increased confidence in air passenger transport through several successful tests and initiatives.…”

Section: Going Airbornementioning

confidence: 99%

Urban Air Mobility—A 6G Use Case?

et al. 2021

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The increasing popularity of Unmanned Aerial Vehicles (UAV) has resulted in exponential growth of the market owing to numerous applications that have been facilitated by advances in battery technology and wireless communications. Given the successes of UAVs thus far, researchers are already gearing towards aerial transport systems that consist of dense deployment of both UAVs and Personal Aerial Vehicles (PAVs) with human passengers. Although the fifth-generation mobile network (5G) key performance indicators have been optimised to support drone use cases for both high data rates and low latency applications, future aerial transport systems will require stricter network key performance indicators to support the expected massive deployment of aerial vehicles taking into account network capacity and distance between the base station and the aerial vehicles, among others. In this article, we present our perspective, vision, architecture, requirements and key performance indicators for future aerial wireless networks supported by 6G for Urban Air Mobility (UAM). Furthermore, we review key enabling technologies and discuss future challenges for incorporating aerial wireless networks in 6G.

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Section: Going Airbornementioning

confidence: 99%

Urban Air Mobility—A 6G Use Case?

et al. 2021

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“…The fundamental advantages of aerial networking infrastructures such as mobility, better channel access, improved coverage, and a higher probability of line-of-sight (LoS) signal propagation compared to terrestrial networks serve as a promising foundation to overcome the current challenges. For instance, owing to their quick and flexible three-dimensional (3-D) deployment capabilities, unmanned aerial vehicles (UAVs) have been involved in wireless systems for multiple purposes such as communication relaying, coverage expansion, and traffic alleviation [9]. To support various application scenarios, multiple UAVs may collaborate and establish different networking topologies including mesh, star, bus, and hierarchical architectures with respect to the communication requirements and the capabilities of the UAVs.…”

Section: A Motivationmentioning

confidence: 99%

Survey on Aerial Radio Access Networks: Toward a Comprehensive 6G Access Infrastructure

Dao

Pham

et al. 2021

Preprint

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Current network access infrastructures are characterized by heterogeneity, low latency, high throughput, and high computational capability, enabling massive concurrent connections and various services. Unfortunately, this design does not pay significant attention to mobile services in underserved areas. In this context, the use of aerial radio access networks (ARANs) is a promising strategy to complement existing terrestrial communication systems. Involving airborne components such as unmanned aerial vehicles, drones, and satellites, ARANs can quickly establish a flexible access infrastructure on demand. ARANs are expected to support the development of seamless mobile communication systems toward a comprehensive sixthgeneration (6G) global access infrastructure. This paper provides an overview of recent studies regarding ARANs in the literature. First, we investigate related work to identify areas for further exploration in terms of recent knowledge advancements and analyses. Second, we define the scope and methodology of this study. Then, we describe ARAN architecture and its fundamental features for the development of 6G networks. In particular, we analyze the system model from several perspectives, including transmission propagation, energy consumption, communication latency, and network mobility. Furthermore, we introduce technologies that enable the success of ARAN implementations in terms of energy replenishment, operational management, and data delivery. Subsequently, we discuss application scenarios envisioned for these technologies. Finally, we highlight ongoing research efforts and trends toward 6G ARANs.

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“…In the context of wireless communications, the ambitious quality-of-service demands (i.e., high-rate, ultra-reliable, and low-latency) of the next-generation networks can be fulfilled by UAV-assisted cellular communications, whereby UAVs are integrated with the terrestrial cellular infrastructure for various applications [4]. In this regard, UAVs have been recently envisioned as aerial base stations [5], [6], relays [5], [7], [8], user equipments (UE) [9], and data fusion access points [10]- [13]. Thanks to UAV's instant and cost-efficient deployment, UAV-assisted cellular communication is especially suitable for providing extra coverage to geographical regions that experience heavy traffic conditions, which are also referred to as hot-spots.…”

mentioning

confidence: 99%

Optimal Deployment of Tethered Drones for Maximum Cellular Coverage in User Clusters

Bushnaq

Kishk

Çelik

et al. 2021

IEEE Trans. Wireless Commun.

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Unmanned aerial vehicles (UAVs) have recently received a significant interest to assist terrestrial wireless networks thanks to their strong line-of-sight links and flexible/instant deployment. However, UAVs' assistance is limited by their battery lifetime and wireless backhaul link capacity. At the expense of limited mobility, tethered UAVs (T-UAVs) can be a viable alternative to provide seamless service over a cable that simultaneously supplies power and data from a ground station (GS). Accordingly, this paper presents a comparative performance analysis of T-UAV and regular/untethered UAV (U-UAV)-assisted cellular traffic offloading from a geographical area that undergoes heavy traffic conditions. By using stochastic geometry tools, we first derive joint distance distributions between the hot-spot users, the terrestrial base station (TBS), and the UAV. To maximize the endto-end signal-to-noise ratio, a user association policy is developed, and corresponding association regions are analytically identified. Then, the overall coverage probability of the U-UAV/T-UAV-assisted system is derived for given locations of the TBS and the U-UAV/T-UAV. Moreover, we analytically prove that optimal UAV location falls within a partial surface of the spherical cone centered at the GS. Numerical results show that T-UAV outperforms U-UAV given that sufficient GS locations accessibility and tether length are provided.

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UAV Assisted Cellular Communications

Cited by 5 publications

References 30 publications

Urban Air Mobility—A 6G Use Case?

Urban Air Mobility—A 6G Use Case?

Survey on Aerial Radio Access Networks: Toward a Comprehensive 6G Access Infrastructure

Optimal Deployment of Tethered Drones for Maximum Cellular Coverage in User Clusters

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