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This letter proposes a novel anti-interference communication method leveraging computational antennas, utilizing time averaging and 1-bit reconfigurable intelligent surfaces (RIS) to achieve robust signal modulation with minimal hardware…

Computational Physics · Physics 2025-10-20 Xiaocun Zong , Fan Yang , Shenheng Xu , Maokun Li

Non-fixed flexible antenna architectures, such as fluid antenna system (FAS), movable antenna (MA), and pinching antenna, have garnered significant interest in recent years. Among them, rotatable antenna (RA) technology has recently drawn…

Signal Processing · Electrical Eng. & Systems 2025-10-06 Yanhua Tan , Beixiong Zheng , Yi Fang , Derrick Wing Kwan Ng , Jie Xu , Rui Zhang

Methods of communications using chaotic signals use an ability of a chaos generator (encoder) and matched response system (decoder) to behave identically despite the instability of chaotic oscillations. Chaotic oscillations cover a wide…

chao-dyn · Physics 2009-09-25 Nikolai F. Rulkov , Lev S. Tsimring

Intelligent reflecting surface (IRS)-aided communication is a promising technology for beyond 5G (B5G) systems, to reconfigure the radio environment proactively. However, IRS-aided communication in practice requires efficient channel…

Information Theory · Computer Science 2021-11-23 Dingyang Ding , Di Wu , Yong Zeng , Shi Jin , Rui Zhang

Microcombs, optical frequency combs generated by nonlinear integrated micro-cavity resonators, have the potential to offer the full capability of their benchtop comb based counterparts, but in an integrated footprint. They have enabled…

Semantic communications offer promising prospects for enhancing data transmission efficiency. However, existing schemes have predominantly concentrated on point-to-point transmissions. In this paper, we aim to investigate the validity of…

Signal Processing · Electrical Eng. & Systems 2024-06-26 Yanhu Wang , Shuaishuai Guo , Anming Dong , Hui Zhao

This paper proposes the transmission of beacon signals to alert potential interferers of an ongoing or impending passive sensing measurement. We focus on the interference from Low-Earth Orbiting (LEO) satellites to a radio-telescope. We…

Signal Processing · Electrical Eng. & Systems 2023-12-21 Cuneyd Ozturk , Randall A. Berry , Dongning Guo , Michael L. Honig , Frank D. Lind

Multi-user Orthogonal Frequency Division Multiplexing (OFDM) and Multiple Output Multiple Output (MIMO) have been widely adopted to enhance the system throughput and combat the detrimental effects of wireless channels. Recently,…

Information Theory · Computer Science 2015-02-18 Yi Xu , Shiwen Mao , Xin Su

We develop a model for an interstellar communication network that is composed of relay nodes that transmit diffraction-limited beams of photons. We provide a multi-dimensional rationale for such a network of communication in lieu of…

Popular Physics · Physics 2022-04-29 John Gertz , Geoffrey Marcy

This article studies an essential yet challenging problem in 5G wireless networks: \emph{Is it possible to enable spectrally-efficient spectrum sharing for heterogeneous wireless networks with different, possibly incompatible, spectrum…

Networking and Internet Architecture · Computer Science 2020-02-18 Lorenzo Bertizzolo , Emrecan Demirors , Zhangyu Guan , Tommaso Melodia

In wireless communication, heterogeneous technologies such as WiFi, ZigBee and BlueTooth operate in the same ISM band.With the exponential growth in the number of wireless devices, the ISM band becomes more and more crowded. These…

Networking and Internet Architecture · Computer Science 2017-07-03 Shuai Wang , Zhimeng Yin , Song Min Kim , Tian He

Magnetic induction (MI) is an effective technique in emergency through-the-earth communications due to the higher penetration efficiency and lower propagation loss as compared with electromagnetic wave communication. How to cancel the…

Signal Processing · Electrical Eng. & Systems 2024-07-25 Zhenyu Wang , Jianyu Wang , Wenchi Cheng

Emerging wireless communication systems will be characterized by a tight coupling between communication and positioning. This is particularly apparent in millimeter-wave (mm-wave) communications, where devices use a large number of antennas…

Information Theory · Computer Science 2017-05-17 Gabriel E. Garcia , Gonzalo Seco-Granados , Eleftherios Karipidis , Henk Wymeersch

The future of mobile communications looks exciting with the potential new use cases and challenging requirements of future 6th generation (6G) and beyond wireless networks. Since the beginning of the modern era of wireless communications,…

Signal Processing · Electrical Eng. & Systems 2019-07-23 Ertugrul Basar , Marco Di Renzo , Julien de Rosny , Merouane Debbah , Mohamed-Slim Alouini , Rui Zhang

Millimeter wave (mmWave) and sub-THz communications, foreseen for sixth generation (6G), suffer from high propagation losses which affect the network coverage. To address this point, smart entities such as network-controlled repeaters…

Signal Processing · Electrical Eng. & Systems 2024-02-19 Diego A. Sousa , Fco. Rafael M. Lima , Victor F. Monteiro , Tarcisio F. Maciel , Behrooz Makki

Nonclassical correlations between the quadrature-phase amplitudes of two spatially separated optical beams are exploited to realize a two-channel quantum communication experiment with a high degree of immunity to interception. For this…

Quantum Physics · Physics 2009-11-06 S. F. Pereira , Z. Y. Ou , H. J. Kimble

Semantic communication (SemCom) is emerging as a key technology for future sixth-generation (6G) systems. Unlike traditional bit-level communication (BitCom), SemCom directly optimizes performance at the semantic level, leading to superior…

Information Theory · Computer Science 2025-07-22 Maojun Zhang , Guangxu Zhu , Richeng Jin , Xiaoming Chen , Qingjiang Shi , Caijun Zhong , Kaibin Huang

Modern optical communication systems transmit multiple frequency channels, each operating very close to its theoretical limit. The total bandwidth can reach 10THz limited by the optical amplifiers. Maximizing spectral efficiency, the…

Signal Processing · Electrical Eng. & Systems 2019-11-11 Mikael Mazur , Jochen Schröder , Magnus Karlsson , Peter A. Andrekson

Spectrum access is an important function of cognitive radios for detecting and utilizing spectrum holes without interfering with the legacy systems. In this paper we propose novel cooperative communication models and show how deploying such…

Information Theory · Computer Science 2009-05-28 Ali Tajer , Xiaodong Wang

We consider the problem of quantum communication mediated by an optical refocusing system, which is schematized as a thin lens with a finite pupil. This model captures the basic features of all those situations in which a signal is either…

Quantum Physics · Physics 2011-07-26 Cosmo Lupo , Vittorio Giovannetti , Stefano Pirandola , Stefano Mancini , Seth Lloyd