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Related papers: Optimal Source Tracking and Beaming of LISA

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This paper leverages fluid antenna (FA) and rate-splitting multiple access (RSMA) to enhance the physical layer security (PLS) of an integrated sensing and communication (ISAC) system. We consider a practical multi-user multi-input…

Information Theory · Computer Science 2025-03-18 Cixiao Zhang , Yin Xu , Size Peng , Xinghao Guo , Xiaowu Ou , Hanjiang Hong , Dazhi He , Wenjun Zhang

In this paper, we focus on the optimal beamformer design for rate splitting multiple access (RSMA)-aided multipleinput single-output (MISO) visible light communication (VLC) networks. First, we derive the closed-form lower bounds of the…

Information Theory · Computer Science 2022-11-03 Shuai Ma , Guanjie Zhang , Zhi Zhang , Rongyan Gu

Space-borne interferometric gravitational-wave detectors, sensitive in the low-frequency (mHz) band, will fly in the next decade. In these detectors, the spacecraft-to-spacecraft light-travel times will necessarily be unequal and…

General Relativity and Quantum Cosmology · Physics 2009-11-10 Massimo Tinto , Michele Vallisneri , J. W. Armstrong

Twisted bilayer photonic crystals introduce a twist between two stacked photonic crystal slabs, enabling strong modulation of their electromagnetic properties. The change in the twist angle strongly influences the resonant frequencies and…

Optics · Physics 2024-12-17 Nicolas Roy , Beicheng Lou , Shanhui Fan , Alexandre Mayer , Michaël Lobet

As the Lyman-alpha (Lya) line of neutral hydrogen is the brightest emission line in the solar spectrum, detecting increases in irradiance due to solar flares at this wavelength can be challenging due to the very high background. Previous…

Solar and Stellar Astrophysics · Physics 2021-03-31 Ryan O. Milligan

High-frequency bands such as millimeter-wave and terahertz require narrow beams due to path loss and shadowing. Beam alignment (BA) methods allow the transceivers to adjust the directions of these beams efficiently by exploiting the channel…

Information Theory · Computer Science 2022-05-17 Ozlem Yildiz , Abbas Khalili , Elza Erkip

Millimeter wave (mmWave) communications are vulnerable to blockages and node mobility due to the highly directional signal beams. The emerging Reconfigurable Intelligent Surfaces (RISs) technique can effectively mitigate the blockage…

Signal Processing · Electrical Eng. & Systems 2024-10-28 Xiaowen Tian , Zhi Sun

In millimeter-wave (mmWave) systems, beamforming is needed to overcome harsh channel environments. As a promising beamforming solution, lens antenna array (LAA) implementation can provide a cost-effective solution without notable…

Signal Processing · Electrical Eng. & Systems 2020-11-03 Liza Afeef , Murat Karabacak , Hüseyin Arslan

The orbiting LISA instrument is designed to detect gravitational waves in the millihertz band, produced by sources including galactic binaries and extreme mass ratio inspirals, among others. The detector consists of three spacecraft, each…

General Relativity and Quantum Cosmology · Physics 2025-01-15 Orion Sauter , Peter Wass , Wiler Sanchez , Henri Inchauspé

Beam alignment is essential to compensate for the high path loss in the millimeter-wave (mmWave) Unmanned Aerial Vehicle (UAV) network. The integrated sensing and communication (ISAC) technology has been envisioned as a promising solution…

Signal Processing · Electrical Eng. & Systems 2023-06-29 Yanpeng Cui , Qixun Zhang , Zhiyong Feng , Fan Liu , Ce Shi , Jinpo Fan , Ping Zhang

We consider a networked control system where a linear time-invariant (LTI) plant, subject to a stochastic disturbance, is controlled over a communication channel with colored noise and a signal-to-noise ratio (SNR) constraint. The…

Systems and Control · Computer Science 2012-04-02 Erik Johannesson , Anders Rantzer , Bo Bernhardsson

In millimeter-wave (mmWave) communications, directional transmission based on beamforming is important to compensate for high pathloss. To maintain the desired direction transmission gain, beam scanning that involves the transmitter sending…

Systems and Control · Electrical Eng. & Systems 2024-01-02 Huang-Chou Lin , Kuang-Hao , Liu

Communication in Millimeter wave (mmWave) band relies on narrow beams due to directionality, high path loss, and shadowing. One can use beam alignment (BA) techniques to find and adjust the direction of these narrow beams. In this paper, BA…

Information Theory · Computer Science 2022-01-19 Abbas Khalili , Shahram Shahsavari , Mohammad A. Amir Khojastepour , Elza Erkip

Accurate object tracking in low-light environments is crucial, particularly in surveillance and ethology applications. However, achieving this is significantly challenging due to the poor quality of captured sequences. Factors such as…

Computer Vision and Pattern Recognition · Computer Science 2024-01-04 Anqi Yi , Nantheera Anantrasirichai

This paper studies transmit beamforming design in an integrated sensing and communication (ISAC) system, where a base station sends symbols to perform downlink multi-user communication and sense an extended target simultaneously. We first…

Information Theory · Computer Science 2023-12-19 Yiqiu Wang , Meixia Tao , Shu Sun

The Laser Interferometer Space Antenna (LISA) will provide the largest observational sample of (interacting) double white dwarf binaries, whose evolution is driven by radiation reaction and other effects, such as tides and mass transfer. We…

Astrophysics · Physics 2009-11-13 A. Stroeer , A. Vecchio , G. Nelemans

Ultra-compact double white dwarfs (DWDs) represent key targets for multi-messenger astrophysics, as they may be observed both through gravitational waves and the electromagnetic (EM) spectrum. The future Laser Interferometer Space Antenna…

High Energy Astrophysical Phenomena · Physics 2025-09-23 Alice Perego , Astrid Lamberts , Mathias Schultheis , Nelson Christensen

This paper investigates an intelligent reflecting surface (IRS) aided millimeter-wave integrated sensing and communication (ISAC) system. Specifically, based on the passive beam scanning in the downlink, the IRS finds the optimal beam for…

Information Theory · Computer Science 2023-07-04 Renwang Li , Xiaodan Shao , Shu Sun , Meixia Tao , Rui Zhang

The optimal instant of observation of astrophysical phenomena for objects that vary on human time-sales is an important problem, as it bears on the cost-effective use of usually scarce observational facilities. In this paper we address this…

Solar and Stellar Astrophysics · Physics 2023-02-15 Miguel Videla , Rene A. Mendez , Jorge F. Silva , Marcos E. Orchard

Intelligent reflecting surface (IRS) is a new and disruptive technology to achieve spectrum- and energy-efficient as well as cost-efficient wireless networks. This paper considers an IRS-assisted downlink non-orthogonal-multiple-access…

Information Theory · Computer Science 2020-01-01 Gang Yang , Xinyue Xu , Ying-Chang Liang
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