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As transceiver elevation angles increase from small to large, existing ultraviolet (UV) non-line-of-sight (NLoS) models encounter two challenges: i) cannot estimate the channel characteristics of UV NLoS communication scenarios when there…

Signal Processing · Electrical Eng. & Systems 2024-11-26 Tianfeng Wu , Fang Yang , Tian Cao , Ling Cheng , Yupeng Chen , Jian Song , Julian Cheng , Zhu Han

Expansion of today's underwater scenarios and missions necessitates the requestion for robust decision making of the Autonomous Underwater Vehicle (AUV); hence, design an efficient decision making framework is essential for maximizing the…

Robotics · Computer Science 2016-12-06 Somaiyeh Mahmoud Zadeh , David M. W Powers , Karl Sammut , Amir Mehdi Yazdani

Underwater optical wireless links have limited range and intermittent connectivity due to the hostile aquatic channel impairments and misalignment between the optical transceivers. Therefore, multi-hop communication can expand the…

Networking and Internet Architecture · Computer Science 2018-11-29 Nasir Saeed , Abdulkadir Celik , Mohamed-Slim Alouini , Tareq Y. Al-Naffouri

As the demand for underwater communication continues to grow, underwater acoustic RIS (UARIS), as an emerging paradigm in underwater acoustic communication (UAC), can significantly improve the communication rate of underwater acoustic…

Signal Processing · Electrical Eng. & Systems 2024-12-03 Ziqi Chen , Jun Du , Chunxiao Jiang , Zhu Han

This work addresses the problem of constrained motion control of the uncrewed surface vessels. The constraints are imposed on states/inputs of the vehicles due to the physical limitations, mission requirements, and safety considerations. We…

Systems and Control · Electrical Eng. & Systems 2026-03-06 Ram Milan Kumar Verma , Shashi Ranjan Kumar , Hemendra Arya

Unmanned aerial vehicles (UAVs) have been successfully adopted to enhance the flexibility and robustness of wireless communication networks. And recently, the reconfigurable intelligent surface (RIS) technology has been paid increasing…

Systems and Control · Electrical Eng. & Systems 2023-01-02 Mohsen Eskandari , Hailong Huang , Andrey V. Savkin , Wei Ni

Visually-guided underwater robots are deployed alongside human divers for cooperative exploration, inspection, and monitoring tasks in numerous shallow-water and coastal-water applications. The most essential capability of such companion…

Robotics · Computer Science 2021-07-30 Md Jahidul Islam

This paper addresses the challenge of energy-constrained maritime monitoring networks by proposing an unmanned aerial vehicle (UAV)-enabled integrated sensing, communication, powering and backhaul transmission scheme with a tailored…

Signal Processing · Electrical Eng. & Systems 2025-06-02 Bohan Li , Jiahao Liu , Yujun Liang , Qian Li , Haochen Liu , Yaoyuan Zhang , Junsheng Mu , Shahid Mumtaz , Sheng Chen

In this paper, we investigate the performance of a mixed radio-frequency-underwater wireless optical communication (RF-UWOC) system where an unmanned aerial vehicle (UAV), as a low-altitude mobile aerial base station, transmits information…

Information Theory · Computer Science 2020-11-19 Sai Li , Liang Yang , Daniel Benevides da Costa

An Autonomous Underwater Vehicle (AUV) should carry out complex tasks in a limited time interval. Since existing AUVs have limited battery capacity and restricted endurance, they should autonomously manage mission time and the resources to…

Robotics · Computer Science 2017-06-15 Somaiyeh Mahmoud. Zadeh

Underwater optical wireless communication (UOWC) is becoming an attractive technology for underwater wireless sensor networks (UWSNs) since it offers high-speed communication links. Although UOWC overcomes the drawbacks of acoustic and…

Networking and Internet Architecture · Computer Science 2018-11-14 Rawan Alghamdi , Nasir Saeed , Hayssam Dahrouj , Tareq Y. Al-Naffouri , Mohamed-Slim Alouini

Unmanned aerial vehicles (UAVs) play an essential role in future wireless communication networks due to their high mobility, low cost, and on-demand deployment. In air-to-ground links, UAVs are widely used to enhance the performance of…

Information Theory · Computer Science 2024-06-11 Hongjiang Lei , Dongyang Meng , Haoxiang Ran , Ki-Hong Park , Gaofeng Pan , Mohamed-Slim Alouini

Unmanned aerial vehicles (UAVs) offer dynamic trajectory control, enabling them to avoid obstacles and establish line-of-sight (LoS) wireless channels with ground nodes (GNs), unlike traditional ground-fixed base stations. This study…

Information Theory · Computer Science 2025-01-07 Gitae Park , Kanghyun Heo , Kisong Lee

The cross-domain oceanic connectivity ranging from underwater to the sky has become increasingly indispensable for a plethora of data-consuming maritime applications, such as maritime meteorological monitoring and offshore exploration.…

Signal Processing · Electrical Eng. & Systems 2026-03-05 Tianqi Mao , Jiayue Liu , Zeping Sui , Leyu Cao , Xiao Liang , Dezhi Zheng , Zhaocheng Wang

In this study, a single autonomous underwater vehicle (AUV) aims to rendezvous with a submerged leader recovery vehicle through a cluttered and variable operating field. The rendezvous problem is transformed into a nonlinear optimal control…

Robotics · Computer Science 2016-06-17 Somaiyeh Mahmoud Zadeh , Amir Mehdi Yazdani , Karl Sammut , David M. W Powers

Maritime activities represent a major domain of economic growth with several emerging maritime Internet of Things use cases, such as smart ports, autonomous navigation, and ocean monitoring systems. The major enabler for this exciting…

Networking and Internet Architecture · Computer Science 2022-09-21 Nikolaos Nomikos , Panagiotis K. Gkonis , Petros S. Bithas , Panagiotis Trakadas

Autonomous Underwater Vehicles (AUVs) conduct missions underwater without the need for human intervention. A docking station (DS) can extend mission times of an AUV by providing a location for the AUV to recharge its batteries and receive…

Robotics · Computer Science 2024-05-21 Corey Knutson , Zhipeng Cao , Junaed Sattar

Life on earth depends on healthy oceans, which supply a large percentage of the planet's oxygen, food, and energy. However, the oceans are under threat from climate change, which is devastating the marine ecosystem and the economic and…

Signal Processing · Electrical Eng. & Systems 2023-02-22 Kenechi G. Omeke , Michael Mollel , Syed T. Shah , Lei Zhang , Qammer H. Abbasi , Muhammad Ali Imran

Underwater docking is critical to enable the persistent operation of Autonomous Underwater Vehicles (AUVs). For this, the AUV must be capable of detecting and localizing the docking station, which is complex due to the highly dynamic…

Robotics · Computer Science 2024-10-28 Jalil Chavez-Galaviz , Jianwen Li , Matthew Bergman , Miras Mengdibayev , Nina Mahmoudian

In the current unmanned aircraft systems (UASs) for sensing services, unmanned aerial vehicles (UAVs) transmit their sensory data to terrestrial mobile devices over the unlicensed spectrum. However, the interference from surrounding…

Signal Processing · Electrical Eng. & Systems 2020-03-13 F. Wu , H. Zhang , J. Wu , L. Song
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