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High-density communication through optical fiber is made possible by Wavelength Division Multiplexing, which is the simultaneous transmission of many discrete signals at different optical frequencies. Vast quantities of data may be…

Optics · Physics 2020-02-19 Paul Fisher , Matteo Villa , Francesco Lenzini , Mirko Lobino

Enabling direct communication between wireless technologies immediately brings significant benefits including, but not limited to, cross-technology interference mitigation and context-aware smart operation. To explore the opportunities, we…

Networking and Internet Architecture · Computer Science 2017-07-11 Song Min Kim , Shigemi Ishida , Shuai Wang , Tian He

A simultaneously transmitting and reflecting reconfigurable intelligent surface (STAR-RIS) aided near-field multiple-input multiple-output (MIMO) communication framework is proposed. A weighted sum rate maximization problem for the joint…

Signal Processing · Electrical Eng. & Systems 2024-12-11 Li Haochen , Yuanwei Liu , Xidong Mu , Yue Chen , Pan Zhiwen

Distributed transmit beamforming enables cooperative radios to act as one virtual antenna array, extending their communications' range beyond the capabilities of a single radio. Most existing distributed beamforming approaches rely on the…

Signal Processing · Electrical Eng. & Systems 2022-01-14 Samer Hanna , Enes Krijestorac , Danijela Cabric

In this paper, we propose a novel computer vision-based approach to aid Reconfigurable Intelligent Surface (RIS) for dynamic beam tracking and then implement the corresponding prototype verification system. A camera is attached at the RIS…

Signal Processing · Electrical Eng. & Systems 2022-07-12 Ming Ouyang , Yucong Wang , Feifei Gao , Shun Zhang , Puchu Li , Jian Ren

Enhancing high-speed wireless communication in the future relies significantly on harnessing high frequency bands effectively. These bands predominantly operate in line-of-sight (LoS) paths, necessitating well-configured antenna arrays and…

Information Theory · Computer Science 2024-04-09 Jiyoung Yun , Hojun Rho , Wan Choi

In this paper, we study a multi-input multi-output (MIMO) beamforming design in an integrated sensing and communication (ISAC) system, in which an ISAC base station (BS) is used to communicate with multiple downlink users and simultaneously…

Information Theory · Computer Science 2024-07-08 Chao Hu , Yuan Fang , Ling Qiu

Prior works have explored multi-armed bandit (MAB) algorithms for the selection of optimal beams for millimeter-wave (mmW) communications between base station and mobile users. However, when the number of beams is large, the existing MAB…

Signal Processing · Electrical Eng. & Systems 2026-02-10 Akanksha Sneh , Shobha Sundar Ram , Sumit J Darak , Aakanksha Tewari

This work addresses the radio resource management (RRM) design in downlink full-duplex integrated sensing and communications (ISAC) systems, jointly optimizing timeslot allocation and beam selection under imperfect self-interference…

Signal Processing · Electrical Eng. & Systems 2025-10-23 Luis F. Abanto-Leon , Setareh Maghsudi

This paper considers the beamforming optimization for sensing a point-like scatterer using a bistatic multiple-input multiple-output (MIMO) orthogonal frequency-division multiplexing (OFDM) radar, which could be part of a joint…

Signal Processing · Electrical Eng. & Systems 2025-08-26 Tobias Laas , Ronald Boehnke , Wen Xu

A scheme for polarization control using two laser beams in a non-linear optical medium is studied using both co- and counter-propagating beam geometries. In particular, we show that under certain conditions it is possible for two laser…

Optics · Physics 2021-02-03 Eugene Kur , Malcolm Lazarow , Jonathan S. Wurtele , Pierre Michel

Laser beams with high optical power propagating in a Kerr medium can undergo self-focusing when their power exceeds a critical power determined by the optical properties of the medium. The highly concentrated energy close to the in the…

Optics · Physics 2026-04-22 Jiaqi Wang , Yang Xu , Saumya Choudhary , Omid Mozafar , Robert Boyd

In this paper, we present a novel distributed UAVs beam reforming approach to dynamically form and reform a space-selective beam path in addressing the coexistence with satellite and terrestrial communications. Despite the unique advantage…

Signal Processing · Electrical Eng. & Systems 2023-07-19 Sudhanshu Arya , Yifeng Peng , Jingda Yang , Ying Wang

We present a dynamical system approach for the control of a nonlinear dynamical system by defining the control problem in a Fiber bundle framework. The constructive procedure derived results in the generation of a NHIM/NAIM which…

Systems and Control · Electrical Eng. & Systems 2025-07-08 Rachit Mehra , M Parimi , S. R. Wagh , Navdeep M Singh

There is a bias in the inference pipeline of most diffusion models. This bias arises from a signal leak whose distribution deviates from the noise distribution, creating a discrepancy between training and inference processes. We demonstrate…

Computer Vision and Pattern Recognition · Computer Science 2023-10-25 Martin Nicolas Everaert , Athanasios Fitsios , Marco Bocchio , Sami Arpa , Sabine Süsstrunk , Radhakrishna Achanta

This paper considers a cell-free integrated sensing and communication (ISAC) MIMO system, where distributed MIMO access points (APs) jointly serve the communication users and sense the target. For this setup, we derive a sensing SNR for…

Information Theory · Computer Science 2024-02-26 Umut Demirhan , Ahmed Alkhateeb

To effectively mitigate the influence of atmospheric turbulence, a novel discrete-time analog transmission free-space optical (DTAT-FSO) communication scheme is proposed. It directly maps information sources to discrete-time analog symbols…

Signal Processing · Electrical Eng. & Systems 2025-04-30 Hongyu Huang , Zhenming Yu , Yi Lei , Wei Zhang , Yongli Zhao , Shanguo Huang , Kun Xu

In this paper, we study the distributed control of networked cyber-physical systems when a much more energy-efficient distributed communication management strategy is proposed to solve the well-studied consensus problem. In contrast to the…

Systems and Control · Computer Science 2016-09-14 Yongcan Cao , Eduardo Pasiliao

Timing detection is the first step and very important in wireless communication systems. Timing detection performance is usually affected by the frequency offset. Therefore, it is a challenge to design the synchronization signal in massive…

Signal Processing · Electrical Eng. & Systems 2017-10-02 Jun Zou

LiDAR-based semantic segmentation is a key component for autonomous mobile robots, yet large-scale annotation of LiDAR point clouds is prohibitively expensive and time-consuming. Although simulators can provide labeled synthetic data,…

Computer Vision and Pattern Recognition · Computer Science 2026-03-30 Tomoya Miyawaki , Kazuto Nakashima , Yumi Iwashita , Ryo Kurazume
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