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Existing works mainly rely on the far-field planar-wave-based channel model to assess the performance of reconfigurable intelligent surface (RIS)-enabled wireless communication systems. However, when the transmitter and receiver are in…

Signal Processing · Electrical Eng. & Systems 2024-03-20 Hao Jiang , Wangqi Shi , Zaichen Zhang , Cunhua Pan , Qingqing Wu , Feng Shu , Ruiqi Liu , Jiangzhou Wang

Over-the-air computation (OAC) is a promising wireless communication method for aggregating data from many devices in dense wireless networks. The fundamental idea of OAC is to exploit signal superposition to compute functions of multiple…

Signal Processing · Electrical Eng. & Systems 2023-09-29 Henrik Hellström , Saeed Razavikia , Viktoria Fodor , Carlo Fischione

UAV communications based on an antenna array entail a beam tracking technology for reliable link acquisition. Unlike conventional cellular communication, beam tracking in UAV communication addresses new issues such as mobility and abrupt…

Signal Processing · Electrical Eng. & Systems 2021-03-16 Ha-Lim Song , Young-Chai Ko

This paper presents a unified analytical framework for a two phase underwater wireless optical communication (UWOC) system that integrates Simultaneous Lightwave Information and Power Transfer (SLIPT) using a photovoltaic (PV) panel…

Numerical Analysis · Mathematics 2025-11-14 Shunyuan Shang , Ziyuan Shi , Mohamed-Slim Alouini

We present a learning-based channel-adaptive joint source and channel coding (CA-JSCC) scheme for wireless image transmission over multipath fading channels. The proposed method is an end-to-end autoencoder architecture with a…

Information Theory · Computer Science 2022-09-09 Haotian Wu , Yulin Shao , Krystian Mikolajczyk , Deniz Gündüz

In recent years, there has been a growing interest in the use of single-photon avalanche diode (SPAD) in optical wireless communication (OWC). SPAD operates in the Geiger mode and can act as a photon counting receiver obviating the need for…

Information Theory · Computer Science 2022-06-07 Shenjie Huang , Yichen Li , Cheng Chen , Mohammad Dehghani Soltani , Robert Henderson , Majid Safari , Harald Haas

Unmanned Aerial Vehicle (UAV) swarm systems necessitate efficient collaborative perception mechanisms for diverse operational scenarios. Current Bird's Eye View (BEV)-based approaches exhibit two main limitations: bounding-box…

Computer Vision and Pattern Recognition · Computer Science 2025-10-16 Zefu Lin , Wenbo Chen , Xiaojuan Jin , Yuran Yang , Lue Fan , Yixin Zhang , Yufeng Zhang , Zhaoxiang Zhang

Unmanned Aerial Vehicles (UAVs) have emerged as a key enabler technology for data collection from Internet of Things (IoT) devices. However, effective data collection is challenged by resource constraints and the need for real-time…

Robotics · Computer Science 2026-05-12 Assane Sankara , Daniel Bonilla Licea , Hajar El Hammouti

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…

Networking and Internet Architecture · Computer Science 2020-01-14 Amin Farajzadeh , Ozgur Ercetin , Halim Yanikomeroglu

Compared to the current wireless communication systems, millimeter wave (mm-Wave) promises a wide range of spectrum. As viable alternatives to existing mm-Wave channel models, various map-based channel models with different modeling methods…

Information Theory · Computer Science 2019-07-11 Yeon-Geun Lim , Yae Jee Cho , MinSoo Sim , Younsun Kim , Chan-Byoung Chae , Reinaldo A. Valenzuela

Orbital angular momentum (OAM) mode multiplexing has the potential to achieve high spectrum-efficiency communications at the same time and frequency by using orthogonal mode resource. However, the vortex wave hollow divergence…

Information Theory · Computer Science 2024-08-05 Ruirui Chen , Wenchi Cheng , Jinyang Lin , Liping Liang

Orbital angular momentum (OAM) technology enhances the spectrum and energy efficiency of wireless communications by enabling multiplexing over different OAM modes. However, classical information theory, which relies on scalar models and…

Signal Processing · Electrical Eng. & Systems 2024-12-17 Runyu Lyu , Wenchi Cheng , Qinghe Du , Tony Q. S. Quek

Underwater acoustic (UWA) communication plays a key role in the process of exploring and studying the ocean. In this paper, a modified non-stationary wideband channel model for UWA communication in shallow water scenarios is proposed. In…

Signal Processing · Electrical Eng. & Systems 2021-08-17 Xiuming Zhu , Cheng-Xiang Wang , Ruofei Ma

Orbital angular momentum (OAM)-encoding has recently emerged as an effective approach for increasing the channel capacity of free-space optical communications. In this paper, OAM-based decoding is formulated as a supervised classification…

Signal Processing · Electrical Eng. & Systems 2019-11-19 Soheil Rostami , Walid Saad , Choong Seon Hong

The vast volume of marine wireless sampling data and its continuously explosive growth herald the coming of the era of marine wireless big data. Two challenges imposed by these data are how to fast, reliably, and sustainably deliver them in…

Information Theory · Computer Science 2018-04-05 Yuzhou Li , Yu Zhang , Wei Li , Tao Jiang

Orbital angular momentum (OAM) technology has attracted much research interest in recent years because of its characteristic helical phase front twisting around the propagation axis and natural orthogonality among different OAM states to…

Signal Processing · Electrical Eng. & Systems 2025-09-22 Wanghan Lv , Kumar Vijay Mishra , Jinsong Hu

In the advent of next-generation wireless communication, millimeter-wave (mmWave) and terahertz (THz) technologies are pivotal for their high data rate capabilities. However, their reliance on large antenna arrays and narrow directive beams…

Signal Processing · Electrical Eng. & Systems 2024-12-09 Gouranga Charan , Ahmed Alkhateeb

We consider a scenario where an UAV-mounted flying base station is providing data communication services to a number of radio nodes spread over the ground. We focus on the problem of resource-constrained UAV trajectory design with (i)…

Information Theory · Computer Science 2018-11-05 Omid Esrafilian , Rajeev Gangula , David Gesbert

This study delves into the potential of harnessing the orbital angular momentum (OAM) property of electromagnetic waves in near-field and line-of-sight scenarios by utilizing large intelligent surfaces, in the context of holographic…

Signal Processing · Electrical Eng. & Systems 2023-08-08 Giulia Torcolacci , Nicolò Decarli , Davide Dardari

Integrating AI into the physical layer is a cornerstone of 6G networks. However, current data-driven approaches struggle to generalize across dynamic environments because they lack an intrinsic understanding of electromagnetic wave…

Networking and Internet Architecture · Computer Science 2026-03-27 Ziqi Chen , Yi Ren , Yixuan Huang , Qi Sun , Nan Li , Yuhong Huang , Chih-Lin I , Yifan Li , Liang Xia