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In this paper, we investigate the design of secure transmission frameworks with an intelligent reflecting surface (IRS). Our design aims to minimize the system energy consumption in cases of rank-one and full-rank access point (AP)-IRS…

Information Theory · Computer Science 2019-09-04 Biqian Feng , Yongpeng Wu , Mengfan Zheng

State of the art high-current superconducting accelerators require efficient RF sources with a fast dynamic phase and power control. This allows for compensation of the phase and amplitude deviations of the accelerating voltage in the…

Accelerator Physics · Physics 2018-06-22 G. Kazakevich , R. Johnson , V. Lebedev , V. Yakovlev

Dual-function-radar-communication (DFRC) is a promising candidate technology for next-generation networks. By integrating hybrid analog-digital (HAD) beamforming into a multi-user millimeter-wave (mmWave) DFRC system, we design a new…

Signal Processing · Electrical Eng. & Systems 2024-04-25 Xin Jin , Tiejun Lv , Wei Ni , Zhipeng Lin , Qiuming Zhu , Ekram Hossain , H. Vincent Poor

The transverse bunch spectrum and the transverse decoherence/recoherence following an initial bunch offset are important phenomena in synchrotrons and storage rings, and are widely used for beam and lattice measurements. Incoherent shifts…

Accelerator Physics · Physics 2015-06-11 Vladimir Kornilov , Oliver Boine-Frankenheim

We consider different approaches to simulate a modern X-ray beamline. Several methodologies with increasing complexity are applied to discuss the relevant parameters that quantify the beamline performance. Parameters such as flux,…

In this letter, we investigate the signal-to-interference-plus-noise-ratio (SINR) maximization problem in a multi-user massive multiple-input-multiple-output (massive MIMO) system enabled with multiple reconfigurable intelligent surfaces…

Signal Processing · Electrical Eng. & Systems 2023-04-06 Somayeh Aghashahi , Zolfa Zeinalpour-Yazdi , Aliakbar Tadaion , Mahdi Boloursaz Mashhadi , Ahmed Elzanaty

In this chapter we give an introduction to the transverse dynamics of the particles in a synchrotron or storage ring. The emphasis is more on qualitative understanding rather than on mathematical correctness, and a number of simulations are…

Accelerator Physics · Physics 2014-04-04 B. J. Holzer

Fourth-generation storage-ring light sources have achieved transverse emittances approaching the diffraction limit at x-ray wavelengths, while their longitudinal coherence remains limited. Existing laser-modulation schemes can induce strong…

Accelerator Physics · Physics 2026-03-09 Weihang Liu , Yu Zhao , Weilun Qin , Yi Jiao , Xiao Li , Sheng Wang

Solid-state spin ensembles addressed via superconducting circuits are promising candidates for quantum memory applications, offering multimodal storage capability and second-long coherence times at their clock transition. Implementing…

Quantum Physics · Physics 2025-10-23 Yutian Wen , V. Ranjan , T. Lorriaux , D. Vion , B. Huard , A. Bienfait , E. Flurin , P. Bertet

Terahertz (THz) communications are regarded as a pillar technology for the 6G systems, by offering multi-ten-GHz bandwidth. To overcome the huge propagation loss while reducing the hardware complexity, THz ultra-massive (UM) MIMO systems…

Information Theory · Computer Science 2022-03-30 Longfei Yan , Chong Han , Nan Yang , Jinhong Yuan

Stereo Image Super-Resolution (stereoSR) has attracted significant attention in recent years due to the extensive deployment of dual cameras in mobile phones, autonomous vehicles and robots. In this work, we propose a new StereoSR method,…

Computer Vision and Pattern Recognition · Computer Science 2023-04-26 Ke Chen , Liangyan Li , Huan Liu , Yunzhe Li , Congling Tang , Jun Chen

This paper considers a multiple-input multiple-output (MIMO) integrated sensing and communication (ISAC) system, where a multi-antenna base station (BS) with transceiver hybrid analog-digital arrays transmits dual-functional signals to…

Information Theory · Computer Science 2026-02-03 Yizhuo Wang , Shuowen Zhang

In this letter, we study the problem of cooperative sensing design for an orthogonal frequency division multiplexing (OFDM) multiple base stations (MBS) system. We consider a practical scenario where the base stations (BSs) exploit certain…

Signal Processing · Electrical Eng. & Systems 2025-07-02 Xinghe Li , Kainan Cheng , Hongzhi Guo , Huiyong Li , Ziyang Cheng

Indus-2 is a synchrotron radiation source which is operational at RRCAT, Indore; India. It is essentially pertinent in any synchrotron radiation facility to store the electron beam without beam loss. During the day to day operation of…

Accelerator Physics · Physics 2013-07-18 Saroj Jena , S. Yadav , R. K. Agrawal , A. D. Ghodke , Pravin Fatnani , T. A. Puntambekar

In this work, we propose a new single-RF MIMO architecture which enjoys high scalability and energy-efficiency. The transmitter in this proposal consists of a single RF illuminator radiating towards a reflecting surface. Each element on the…

Information Theory · Computer Science 2020-03-20 Ali Bereyhi , Vahid Jamali , Ralf R. Müller , Antonia M. Tulino , Georg Fischer , Robert Schober

We design and demonstrate a monolithically integrated silicon photonic multichannel optical hybrid for versatile broadband coherent reception, addressing the critical limitations of current wavelength multiplexed systems in scalability and…

Feedback systems are essential for stable operation of a linear collider, providing a cost-effective method for relaxing tight tolerances. In the Stanford Linear Collider (SLC), feedback controls beam parameters such as trajectory, energy,…

Accelerator Physics · Physics 2016-11-17 L. Hendrickson , P. Grossberg , T. Himel , M. Minty , N. Phinney , P. Raimondi , T. Raubenheimer , H. Shoaee , P. Tenenbaum

Superconducting RF (SRF) photo-injectors are one of the most promising devices for generating continuous wave (CW) electron beams with record high brightness. Ultra-high vacuum of SRF guns provides for long lifetime of the high quantum…

Accelerator Physics · Physics 2018-08-15 I. Petrushina , V. N. Litvinenko , I. Pinayev , K. Smith , G. Narayan , F. Severino

A development effort to improve the performance of superconducting radio-frequency half-wave resonators (SRF HWRs) is underway at the Facility for Rare Isotope Beams (FRIB), where 220 such resonators are in operation. Our goal was to…

Reconfigurable intelligent surface (RIS) has become a focal point of extensive research due to its remarkable "squared gain". However, achieving a substantial beamforming gain typically requires a significant number of elements, which leads…

Information Theory · Computer Science 2023-11-20 Hao Xie , Dong Li