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The advancement of advanced air mobility (AAM) in recent years has given rise to the concept of low-altitude economy (LAE). However, the diverse flight activities associated with the emerging LAE applications in urban scenarios confront…

Signal Processing · Electrical Eng. & Systems 2025-04-18 Yonghao Wang , Ruoguang Li , Di Wu , Jiaqi Chen , Yong Zeng

The substantial communication resources consumed by conventional pilot-based channel sounding impose an unsustainable overhead, presenting a critical scalability challenge for the future 6G networks characterized by massive channel…

Signal Processing · Electrical Eng. & Systems 2026-04-22 Yancheng Wang , Chuan Huang , Songyang Zhang , Guanying Chen , Wei Guo , Shenglun Lan , Lexi Xu , Xinzhou Cheng , Xiongyan Tang , Shuguang Cui

In this paper, a machine learning based deployment framework of unmanned aerial vehicles (UAVs) is studied. In the considered model, UAVs are deployed as flying base stations (BS) to offload heavy traffic from ground BSs. Due to…

Signal Processing · Electrical Eng. & Systems 2020-07-31 Linyan Lu , Zhaohui Yang , Mingzhe Chen , Zelin Zang , Mohammad Shikh-Bahaei

Cellular-connected unmanned aerial vehicles (UAVs) represent a promising technology for extending the coverage of 5G and 6G networks in a cost-effective manner. Additionally, Massive multiple-input multiple-output (MIMO) serves as an…

Signal Processing · Electrical Eng. & Systems 2024-01-01 Byunghyun Lee , Andrew Marcum , David Love , James Krogmeier

With the increasing demand for real-time channel state information (CSI) in sixth-generation (6G) mobile communication networks, channel knowledge map (CKM) emerges as a promising technique, offering a site-specific database that enables…

Signal Processing · Electrical Eng. & Systems 2025-04-15 Zijian Wu , Di Wu , Shen Fu , Yuelong Qiu , Yong Zeng

With growing popularity, unmanned aerial vehicles (UAVs) are pivotally extending conventional terrestrial Internet of Things (IoT) into the sky. To enable high-performance two-way communications of UAVs with their ground pilots/users,…

Signal Processing · Electrical Eng. & Systems 2019-04-26 Jiangbin Lyu , Rui Zhang

Unmanned Aerial Vehicles (UAVs) are increasingly utilized in wireless communication, yet accurate channel loss prediction remains a significant challenge, limiting resource optimization performance. To address this issue, this paper…

Artificial Intelligence · Computer Science 2025-05-14 Chiya Zhang , Ting Wang , Rubing Han , Yuanxiang Gong

Intelligent reflecting surface (IRS)-aided communication is a promising technology for beyond 5G (B5G) systems, to reconfigure the radio environment proactively. However, IRS-aided communication in practice requires efficient channel…

Information Theory · Computer Science 2021-11-23 Dingyang Ding , Di Wu , Yong Zeng , Shi Jin , Rui Zhang

In this paper, we propose an novel implementation of a simultaneous localization and mapping (SLAM) system based on a monocular camera from an unmanned aerial vehicle (UAV) using Depth prediction performed with Capsule Networks (CapsNet),…

Robotics · Computer Science 2018-08-17 Sunil Prakash , Gaelan Gu

To alleviate the pilot and CSI-feedback burden in 6G, channel knowledge map (CKM) has emerged as a promising approach that predicts CSI solely from user locations. Nevertheless, accurate location information is rarely available in current…

Signal Processing · Electrical Eng. & Systems 2026-03-18 Kequan Zhou , Guangyi Zhang , Hanlei Li , Yunlong Cai , Guanding Yu

Radio maps are emerging as a popular means to endow next-generation wireless communications with situational awareness. In particular, radio maps are expected to play a central role in unmanned aerial vehicle (UAV) communications since they…

Signal Processing · Electrical Eng. & Systems 2020-05-07 Daniel Romero , Raju Shrestha , Yves Teganya , Sundeep Prabhakar Chepuri

Channel knowledge map (CKM) is a promising technology to enable environment-aware wireless communications and sensing with greatly enhanced performance, by offering location-specific channel prior information for future wireless networks.…

Signal Processing · Electrical Eng. & Systems 2025-04-25 Shen Fu , Yong Zeng , Zijian Wu , Di Wu , Shi Jin , Cheng-Xiang Wang , Xiqi Gao

Wireless communication between an unmanned aerial vehicle (UAV) and the ground base station (BS) is susceptible to adversarial jamming. In such situations, it is important for the UAV to indicate a new channel to the BS. This paper…

Signal Processing · Electrical Eng. & Systems 2020-02-12 Guillem Reus Muns , Mithun Diddi , Hanumant Singh , Kaushik R. Chowdhury

Urban Air Mobility (UAM) is the envisioned future of inter-city aerial transportation. This paper presents a novel, in-flight connectivity link allocation method for UAM, which dynamically switches between terrestrial cellular and Low Earth…

Emerging Technologies · Computer Science 2024-06-12 Karnika Biswas , Hakim Ghazzai , Abdullah Khanfor , Lokman Sboui

Radio maps are essential for enhancing wireless communications and localization. However, existing methods for constructing radio maps typically require costly calibration processes to collect location-labeled channel state information…

Machine Learning · Computer Science 2025-10-10 Zheng Xing , Junting Chen

Numerous communications and networking challenges prevent deploying unmanned aerial vehicles (UAVs) in extreme environments where the existing wireless technologies are mainly ground-focused; and, as a consequence, the air-to-air channel…

Systems and Control · Electrical Eng. & Systems 2021-11-23 Alireza Mohammadi , Mehdi Rahmati , Hafiz Malik

This paper studies optimal unmanned aerial vehicle (UAV) placement to ensure line-of-sight (LOS) communication and sensing for a cluster of ground users possibly in deep shadow, while the UAV maintains backhaul connectivity with a base…

Systems and Control · Electrical Eng. & Systems 2024-09-04 Yuanshuai Zheng , Junting Chen

With the emergence of the low-altitude economy, radio maps have become essential for ensuring reliable wireless connectivity to aerial platforms. Autonomous aerial agents are commonly deployed for data collection using waypoint-based…

Signal Processing · Electrical Eng. & Systems 2025-08-25 Wenlihan Lu , Shijian Gao , Miaowen Wen , Yuxuan Liang , Liuqing Yang , Chan-Byoung Chae , H. Vincent Poor

This paper presents a reinforcement learning (RL) based approach for path planning of cellular connected unmanned aerial vehicles (UAVs) operating beyond visual line of sight (BVLoS). The objective is to minimize travel distance while…

Robotics · Computer Science 2025-10-13 Mehran Behjati , Rosdiadee Nordin , Nor Fadzilah Abdullah

Unmanned aerial vehicles (UAVs) have been widely adopted in various real-world applications. However, the control and optimization of multi-UAV systems remain a significant challenge, particularly in dynamic and constrained environments.…

Machine Learning · Computer Science 2025-06-10 Zijiang Yan , Hao Zhou , Jianhua Pei , Hina Tabassum