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Rydberg atom-based sensors are a new type of radio frequency sensor that is inherently quantum mechanical. Several configurations of the sensor use a local oscillator to determine the properties of the target radio frequency field. We…

Atomic Physics · Physics 2023-05-30 Mohammad Noaman , Donald W. Booth , James P. Shaffer

The D-band offering an untapped wide bandwidth is promising for high data rate communication and high-resolution wireless sensing. However, these potentials are hindered by the low performance and energy efficiency of the D-band circuits…

Signal Processing · Electrical Eng. & Systems 2025-12-15 Subbarao Korlapati , Reza Nikandish

Rate-Splitting Multiple Access (RSMA), relying on multi-antenna Rate-Splitting (RS) techniques, has emerged as a powerful strategy for multi-user multi-antenna systems. In this paper, RSMA is introduced as a unified multiple access for…

Signal Processing · Electrical Eng. & Systems 2020-03-09 Chengcheng Xu , Bruno Clerckx , Shiwa Chen , Yijie Mao , Jianyun Zhang

Rydberg atomic quantum receivers have been seen as novel radio frequency measurements and the high sensitivity to a large range of frequencies makes it attractive for communications reception. However, their performance can be significantly…

Signal Processing · Electrical Eng. & Systems 2026-05-15 Hao Wu , Xinyuan Yao , Shanchi Wu , Rui Ni , Chen Gong , Kaibin Huang

Rydberg atomic receivers represent a transformative approach to achieving high-sensitivity, broadband, and miniaturized radio frequency (RF) reception. However, existing static signal models for Rydberg atomic receivers rely on the…

Signal Processing · Electrical Eng. & Systems 2025-11-11 Jieao Zhu , Linglong Dai

Reconfigurable intelligent surface (RIS) is a newly-emerged technology that might fundamentally change how wireless networks are operated. Though extensively studied in recent years, the practical limitations of RIS are often neglected when…

Signal Processing · Electrical Eng. & Systems 2023-12-12 Parisa Ramezani , Yasaman Khorsandmanesh , Emil Björnson

Reconfigurable intelligent surface (RIS) is a new paradigm that has great potential to achieve cost-effective, energy-efficient information modulation for wireless transmission, by the ability to change the reflection coefficients of the…

Signal Processing · Electrical Eng. & Systems 2020-07-07 Wankai Tang , Jun Yan Dai , Ming Zheng Chen , Kai-Kit Wong , Xiao Li , Xinsheng Zhao , Shi Jin , Qiang Cheng , Tie Jun Cui

Rydberg atoms in a gas form are highly sensitive electric field probes capable of detecting and measuring the amplitude, phase, and polarization of broadband time-varying signals. Here, we present the performance of a frequency modulated…

In this paper, we investigate a reconfigurable intelligent surface (RIS)-assisted integrated sensing and communications (ISAC) framework equipped with multiple Rydberg atomic receiver (RAR)-aided users. By leveraging the reference-assisted…

Signal Processing · Electrical Eng. & Systems 2026-01-13 Hong-Bae Jeon , Chan-Byoung Chae

Transmitting data using the phases on reconfigurable intelligent surfaces (RIS) is a promising solution for future energy-efficient communication systems. Recent work showed that a virtual phased massive multiuser…

Signal Processing · Electrical Eng. & Systems 2023-10-26 Wai-Yiu Keung , Hei Victor Cheng , Wing-Kin Ma

Reconfigurable Smart Surface (RSS) is assumed to be a key enabler for future wireless communication systems due to its ability to control the wireless propagation environment and, thus, enhance communications quality. Although optimal and…

Signal Processing · Electrical Eng. & Systems 2021-11-23 Maximiliano Rivera , Mohammad Chegini , Wael Jaafar , Safwan Alfattani , Halim Yanikomeroglu

Movable antenna (MA) has demonstrated great potential in enhancing wireless communication performance. In this paper, we investigate an MA-enabled multiple-input multiple-output (MIMO) communication system with spatial modulation (SM),…

Signal Processing · Electrical Eng. & Systems 2026-01-21 Kaihe Wang , Ran Yang , Lipeng Zhu , Rongyan Xi , Yue Xiu , Zhongpei Zhang

Rydberg sensors offer a unique approach to radio frequency (RF) detection, leveraging the high sensitivity and quantum properties of highly-excited atomic states to achieve performance levels beyond classical technologies. Non-linear…

Atomic Physics · Physics 2025-07-11 Luís Felipe Gonçalves , Teng Zhang , Georg Raithel , David A. Anderson

An optical probe of cesium Rydberg atoms generated in a thermal vapor cell is used to retrieve a baseband signal modulated onto a 16.98-GHz carrier wave in real-time, demonstrating an atom-based quantum receiver suitable for microwave…

Quantum Physics · Physics 2020-02-25 Yuechun Jiao , Xiaoxuan Han , Jiabei Fan , Georg Raithel , Jianming Zhao , Suotang Jia

Employing low resolution analog-to-digital converters in massive multiple-input multiple-output (MIMO) has many advantages in terms of total power consumption, cost and feasibility of such systems. However, such advantages come together…

Information Theory · Computer Science 2024-10-30 Ali Bulut Üçüncü , Gökhan Muzaffer Güvensen , Ali Özgür Yılmaz

A novel dynamic hybrid beamforming architecture is proposed to achieve the spatial multiplexing-power consumption tradeoff for near-field multiple-input multiple-output (MIMO) networks, where each radio frequency (RF) chain is connected to…

Information Theory · Computer Science 2023-12-27 Zheng Zhang , Yuanwei Liu , Zhaolin Wang , Jian Chen , Tony Q. S. Quek

This work encompasses Rate-Splitting (RS), providing significant benefits in multi-user settings in the context of huge degrees of freedom promised by massive Multiple-Input Multiple-Output (MIMO). However, the requirement of massive MIMO…

Information Theory · Computer Science 2017-02-07 Anastasios Papazafeiropoulos , Bruno Clerckx , Tharm Ratnarajah

In this paper, we consider a prospective receiving hybrid beamforming structure consisting of several radio frequency (RF) chains and abundant antenna elements in multi-input multi-output (MIMO) systems. Due to conventional costly full…

Information Theory · Computer Science 2024-05-21 Li-Hsiang Shen , Yen-Chun Lo , Kai-Ten Feng , Sau-Hsuan Wu , Lie-Liang Yang

Rate-Splitting Multiple Access (RSMA) has emerged as a novel multiple access technique that enlarges the achievable rate region of Multiple-Input Multiple-Output (MIMO) broadcast channels with linear precoding. In this work, we jointly…

Information Theory · Computer Science 2025-03-11 Sibo Zhang , Bruno Clerckx , David Vargas , Oliver Haffenden , Andrew Murphy

Rydberg atomic quantum receivers have been seen as novel radio frequency measurements and the high sensitivity to a large range of frequencies makes it attractive for communications reception. However, their unique physical characteristics…

Signal Processing · Electrical Eng. & Systems 2025-09-24 Hao Wu , Xinyuan Yao , Rui Ni , Chen Gong , Kaibin Huang