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Non-orthogonal multiple access (NOMA) has received significant attention for future wireless networks. NOMA outperforms orthogonal schemes, such as OFDMA, in terms of spectral efficiency and massive connectivity. The joint subcarrier and…

网络与互联网体系结构 · 计算机科学 2019-10-07 Lou Salaun , Marceau Coupechoux , Chung Shue Chen

In this paper, we consider that the unmanned aerial vehicles (UAVs) with attached intelligent reflecting surfaces (IRSs) play the role of flying reflectors that reflect the signal of users to the destination, and utilize the power-domain…

信号处理 · 电气工程与系统科学 2021-11-09 Hussein M. Hariz , Saeed Sheikhzadeh , Nader Mokari , Mohammad R. Javan , B. Abbasi-Arand , Eduard A. Jorswieck

This work considers covert communications in the context of unmanned aerial vehicle (UAV) networks, aiming to hide a UAV for transmitting critical information out of a scenario that is monitored and where communication is not allowed.…

信息论 · 计算机科学 2019-09-04 Xiaobo Zhou , Shihao Yan , Jinsong Hu , Jiande Sun , Jun Li , Feng Shu

This paper addresses the joint optimization of trajectories and bandwidth allocation for multiple Unmanned Aerial Vehicles (UAVs) to enhance energy efficiency in the cooperative data collection problem. We focus on an important yet…

多智能体系统 · 计算机科学 2026-01-19 Cuong Le , Symeon Chatzinotas , Thang X. Vu

This letter investigates an uplink power control problem for unmanned aerial vehicles (UAVs) assisted wireless communications. We jointly optimize the UAV's flying altitude, antenna beamwidth, UAV's location and ground terminals' allocated…

The integrated use of non-terrestrial network (NTN) entities such as the high-altitude platform station (HAPS) and low-altitude platform station (LAPS) has become essential elements in the space-air-ground integrated networks (SAGINs).…

系统与控制 · 电气工程与系统科学 2023-03-24 Atefeh H. Arani , Peng Hu , Yeying Zhu

This paper investigates the use of an unmanned aerial vehicle (UAV) to assist covert communication between a low-Earth orbit (LEO) satellite and a ground user under the surveillance of a passive warden. The UAV simultaneously serves its own…

信号处理 · 电气工程与系统科学 2025-11-11 Hung D. Nguyen , Jeongseok Ha

This letter investigates the transmit power and trajectory optimization problem for unmanned aerial vehicle (UAV)-aided networks. Different from majority of the existing studies with fixed communication infrastructure, a dynamic scenario is…

信号处理 · 电气工程与系统科学 2018-01-17 Haichao Wang , Guochun Ren , Jin Chen , Guoru Ding , Yijun Yang

The main limitation of visible light communication (VLC) is the narrow modulation bandwidth, which reduces the achievable data rates. In this paper, we apply the non-orthogonal multiple access (NOMA) scheme to enhance the achievable…

信息论 · 计算机科学 2015-12-01 Hanaa Marshoud , Vasileios M. Kapinas , George K. Karagiannidis , Sami Muhaidat

Aerial communication platforms, stratospheric high-altitude platform stations (HAPS), have the potential to provide/catalyze advanced mobile wireless communication services with its ubiquitous connectivity and ultra-wide coverage radius.…

信号处理 · 电气工程与系统科学 2023-03-10 Sidrah Javed , Mohamed-Slim Alouini , Zhiguo Ding

In this paper, we investigate an unmanned aerial vehicle (UAV)-enabled secure communication scenario that a cluster of UAVs performs a virtual non-uniform linear array (NULA) to communicate with a base station (BS) in the presence of…

信号处理 · 电气工程与系统科学 2025-04-24 Bin Qiu , Wenchi Cheng , Hongxiang He , Wei Zhang

This paper addresses the growing demand for high-bandwidth wireless data transmission by exploring Visible Light Communication (VLC) as an alternative to Radio Frequency (RF) communication. In indoor scenarios, VLC systems utilize existing…

信号处理 · 电气工程与系统科学 2025-04-18 Serkan Vela , Gokce Hacioglu

Unmanned aerial vehicle (UAV) swarm has emerged as a promising novel paradigm to achieve better coverage and higher capacity for future wireless network by exploiting the more favorable line-of-sight (LoS) propagation. To reap the potential…

信号处理 · 电气工程与系统科学 2020-08-20 Lingyun Zhou , Xihan Chen , Mingyi Hong , Shi Jin , Qingjiang Shi

In this paper, we propose a new resource allocation framework for unmanned aerial vehicle (UAV) assisted multicast wireless networks in which the network users according to their request are divided into several multicast groups. We adopt…

系统与控制 · 电气工程与系统科学 2022-02-15 Shima Salarhosseini , Mohammad Reza Javan , Ali Nazari

In this article, we investigate the content distribution in the hotspot area, whose traffic is offloaded by the combination of the unmanned aerial vehicle (UAV) communication and edge caching. In cache-enabling UAV-assisted cellular…

信号处理 · 电气工程与系统科学 2020-08-13 Tiankui Zhang , Yi Wang , Yuanwei Liu , Wenjun Xu , Arumugam Nallanathan

Unmanned aerial vehicles (UAVs) integrated into cellular networks face significant challenges from air-to-ground interference. To address this, we propose a downlink UAV communication system that leverages a fluid antenna system (FAS)-…

信号处理 · 电气工程与系统科学 2026-01-30 Ali Reda , Tamer Mekkawy , Theodoros A. Tsiftsis , Chan-Byoung Chae , Kai-Kit Wong

Distributed management over Unmanned Aerial Vehicle (UAV) based communication networks (UCNs) has attracted increasing research attention. In this work, we study a distributed user connectivity maximization problem in a UCN. The work…

网络与互联网体系结构 · 计算机科学 2024-09-11 Bowei Li , Saugat Tripathi , Salman Hosain , Ran Zhang , Jiang , Xie , Miao Wang

In this letter, we study a wireless communication system with a fixed-wing unmanned aerial vehicle (UAV) employed to collect information from a group of ground nodes (GNs). Our objective is to maximize the UAV's energy efficiency (EE),…

信息论 · 计算机科学 2019-07-25 Jingwei Zhang , Yong Zeng , Rui Zhang

Unmanned aerial vehicles (UAVs) are recognized as promising technologies for area coverage due to the flexibility and adaptability. However, the ability of a single UAV is limited, and as for the large-scale three-dimensional (3D) scenario,…

信号处理 · 电气工程与系统科学 2023-09-22 Jia He , Ziye Jia , Chao Dong , Junyu Liu , Qihui Wu , Jingxian Liu

Next-generation satellite systems require more flexibility in resource management such that available radio resources can be dynamically allocated to meet time-varying and non-uniform traffic demands. Considering potential benefits of beam…

信息论 · 计算机科学 2021-10-14 Anyue Wang , Lei Lei , Eva Lagunas , Ana I. Perez-Neira , Symeon Chatzinotas , Bjorn Ottersten