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The deployment of unmanned aerial vehicles (UAVs) is proliferating as they are effective, flexible and cost-efficient devices for a variety of applications ranging from natural disaster recovery to delivery of goods. We investigate a…

信号处理 · 电气工程与系统科学 2019-09-30 Ali Rahmati , Seyyedali Hosseinalipour , Yavuz Yapici , Xiaofan He , Ismail Guvenc , Huaiyu Dai , Arupjyoti Bhuyan

This work studies the joint problem of power and trajectory optimization in an unmanned aerial vehicle (UAV)-enabled mobile relaying system. In the considered system, in order to provide convenient and sustainable energy supply to the UAV…

信息论 · 计算机科学 2022-10-17 Ming-Min Zhao , Qingjiang Shi , Min-Jian Zhao

Considering the exponential growth of Internet-of-Things devices and the goals toward sustainable networks, the complexity should be focused on the infrastructure side. For a massive number of passive devices, backscatter communication (BC)…

信号处理 · 电气工程与系统科学 2024-11-14 Ahmet Kaplan , Diana P. M. Osorio , Erik G. Larsson

Future intelligent systems will consist of a massive number of battery-less sensors, where quick and accurate aggregation of sensor data will be of paramount importance. Over-the-air computation (AirComp) is a promising technology wherein…

网络与互联网体系结构 · 计算机科学 2020-01-14 Amin Farajzadeh , Ozgur Ercetin , Halim Yanikomeroglu

In the finite blocklength scenario, which is suitable for practical applications, a method of maximizing the average effective secrecy rate (AESR) is proposed for a UAV-enabled secure communication by optimizing the UAV's trajectory and…

信号处理 · 电气工程与系统科学 2020-03-27 Yuntian Wang , Xiaobo Zhou , Zhihong Zhuang , Linlin Sun , Yuwen Qian , Jinhui Lu , Feng Shu

With the emergence of diverse mobile applications (such as augmented reality), the quality of experience of mobile users is greatly limited by their computation capacity and finite battery lifetime. Mobile edge computing (MEC) and wireless…

信号处理 · 电气工程与系统科学 2018-02-13 Fuhui Zhou , Yongpeng Wu , Haijian Sun , Zheng Chu

In this letter, we study the energy efficiency (EE) optimisation of unmanned aerial vehicles (UAVs) providing wireless coverage to static and mobile ground users. Recent multi-agent reinforcement learning approaches optimise the system's EE…

网络与互联网体系结构 · 计算机科学 2022-04-05 Babatunji Omoniwa , Boris Galkin , Ivana Dusparic

Ambient backscatter communication (AmBC) enables radio-frequency (RF) powered backscatter devices (BDs) (e.g., sensors, tags) to modulate their information bits over ambient RF carriers in an over-the-air manner. This technology also called…

信息论 · 计算机科学 2017-04-11 Gang Yang , Ying-Chang Liang , Rui Zhang , Yiyang Pei

This paper studies an unmanned aerial vehicle (UAV)-enabled wireless powered communication network (WPCN), in which a UAV is dispatched as a mobile access point (AP) to serve a set of ground users periodically. The UAV employs the radio…

信息论 · 计算机科学 2018-10-10 Lifeng Xie , Jie Xu , Rui Zhang

In this work, we study an unmanned aerial vehicle (UAV)-enabled secure integrated sensing and communication (ISAC) system, where a UAV serves as an aerial base station (BS) to simultaneously perform communication with a user and detect a…

信息论 · 计算机科学 2025-05-28 Jianping Yao , Zeyu Yang , Zai Yang , Jie Xu , Tony Q. S. Quek

This paper exploits the networked integrated sensing and communications (ISAC) to support low-altitude economy (LAE), in which a set of networked ground base stations (GBSs) cooperatively transmit joint information and sensing signals to…

信号处理 · 电气工程与系统科学 2024-06-26 Gaoyuan Cheng , Xianxin Song , Zhonghao Lyu , Jie Xu

Recent advancements in 6G systems signal a leap towards universal connectivity and ultra-reliable, low-latency communications for real-time data devices. Yet, these advancements encounter obstacles such as limited device battery life and…

信号处理 · 电气工程与系统科学 2024-03-18 Asad Mahmood , Thang X. Vu , Wali Ullah Khan , Symeon Chatzinotas , Björn Ottersten

This paper considers secure communications for an underlay cognitive radio network (CRN) in the presence of an external eavesdropper (Eve). The secrecy performance of CRNs is usually limited by the primary receiver's interference power…

信号处理 · 电气工程与系统科学 2020-03-27 Phu X. Nguyen , Van-Dinh Nguyen , Hieu V. Nguyen , Oh-Soon Shin

Unmanned aerial vehicles (UAVs) can enhance the performance of cellular networks, due to their high mobility and efficient deployment. In this paper, we present a first study on how the user mobility affects the UAVs' trajectories of a…

信息论 · 计算机科学 2020-01-01 Yao Tang , Man Hon Cheung , Tat-Ming Lok

This paper investigates a new scenario of spectrum sharing between unmanned aerial vehicle (UAV) and terrestrial wireless communication, in which a cognitive/secondary UAV transmitter communicates with a ground secondary receiver (SR), in…

信息论 · 计算机科学 2019-08-16 Yuwei Huang , Weidong Mei , Jie Xu , Ling Qiu , Rui Zhang

Short-packet communication (SPC) and unmanned aerial vehicles (UAVs) are anticipated to play crucial roles in the development of 5G-and-beyond wireless networks and the Internet of Things (IoT). In this paper, we propose a secure SPC…

信息论 · 计算机科学 2024-01-01 Milad Tatar Mamaghani , Xiangyun Zhou , Nan Yang , A. Lee Swindlehurst

Integrating the unmanned aerial vehicles (UAVs) into the cellular network is envisioned to be a promising technology to significantly enhance the communication performance of both UAVs and existing terrestrial users. In this paper, we first…

信息论 · 计算机科学 2018-05-21 Shuowen Zhang , Yong Zeng , Rui Zhang

This paper studies energy-efficient unmanned aerial vehicle (UAV)-enabled wireless communications, where the UAV acts as a flying base station (BS) to serve the ground users (GUs) within some predetermined latency constraints, e.g.,…

信息论 · 计算机科学 2020-06-17 Dinh-Hieu Tran , Thang X. Vu , Symeon Chatzinotas , Shahram ShahbazPanahi , Björn Ottersten

Unmanned aerial vehicles (UAVs)-enabled aerial communication provides a flexible, reliable, and cost-effective solution for a range of wireless applications. However, due to the high line-of-sight (LoS) probability, aerial communications…

网络与互联网体系结构 · 计算机科学 2024-04-12 Jiahui Li , Geng Sun , Qingqing Wu , Shuang Liang , Pengfei Wang , Dusit Niyato

Unmanned aerial vehicle (UAV) has high flexibility and controllable mobility, therefore it is considered as a promising enabler for future integrated sensing and communication (ISAC). In this paper, we propose a novel adaptable ISAC (AISAC)…

信号处理 · 电气工程与系统科学 2024-10-28 Cailian Deng , Xuming Fang , Xianbin Wang