English
Related papers

Related papers: ROA-Based Subharmonic Injection Locking for Oscill…

200 papers

A prominent approach to solving combinatorial optimization problems on parallel hardware is Ising machines, i.e., hardware implementations of networks of interacting binary spin variables. Most Ising machines leverage second-order…

Emerging Technologies · Computer Science 2022-12-08 Connor Bybee , Denis Kleyko , Dmitri E. Nikonov , Amir Khosrowshahi , Bruno A. Olshausen , Friedrich T. Sommer

On top of the Resource Public Key Infrastructure (RPKI), the Route Origin Authorization (ROA) creates a cryptographically verifiable binding of an autonomous system to a set of IP prefixes it is authorized to originate. By their design,…

Cryptography and Security · Computer Science 2024-12-10 Yanbiao Li , Hui Zou , Yuxuan Chen , Yinbo Xu , Zhuoran Ma , Di Ma , Ying Hu , Gaogang Xie

Multi-phase injection-locked ring oscillators (MP-ILROs) are widely used for multi-phase clock generation, with their phase accuracy primarily determined by the inherent accuracy of the oscillator itself, due to the suppression of input…

Signal Processing · Electrical Eng. & Systems 2025-01-06 Zhaowen Wang

In this article we demonstrate the injection locking of recently demonstrated spintronic feedback nano oscillator to microwave magnetic fields at integers as well fractional multiples of its auto oscillation frequency. Feedback oscillators…

Mesoscale and Nanoscale Physics · Physics 2017-12-20 Hanuman Singh , K. Konishi , S. Bhuktare , A. Bose , S. Miwa , A. Fukushima , K. Yakushiji , S. Yuasa , H. Kubota , Y. Suzuki , A. A. Tulapurkar

Non-orthogonal multiple access (NOMA) technique is important for achieving a high data rate in next-generation wireless communications. A key challenge to fully utilizing the effectiveness of the NOMA technique is the optimization of the…

Information Theory · Computer Science 2024-10-28 Teppei Otsuka , Aohan Li , Hiroki Takesue , Kensuke Inaba , Kazuyuki Aihara , Mikio Hasegawa

This paper investigates the optimization of reconfigurable intelligent surface (RIS) in an integrated sensing and communication (ISAC) system. \red{To meet the demand of growing number of devices, power domain non-orthogonal multiple access…

Signal Processing · Electrical Eng. & Systems 2023-09-13 Wanting Lyu , Yue Xiu , Xinyang Li , Songjie Yang , Phee Lep Yeoh , Yonghui Li , Zhongpei Zhang

Injection locking is a well-established technique widely used in optics as well as solid-state devices for efficient suppression of noise. We present the spectroscopic characterization of the effect of the injection-locking signal (ILS) in…

Quantum Physics · Physics 2023-02-09 Gopika Lakshmi Bhai , Hiroto Mukai , Jaw-Shen Tsai

Reconfigurable intelligent surface (RIS) has been anticipated to be a novel cost-effective technology to improve the performance of future wireless systems. In this paper, we investigate a practical RIS-aided multiple-input-multiple-output…

Information Theory · Computer Science 2023-03-23 Jintao Wang , Shiqi Gong , Qingqing Wu , Shaodan Ma

Reconfigurable intelligent surfaces (RISs) have become a promising candidate for the development of future mobile systems. In the context of massive machine-type communications (mMTC), a RIS can be used to support the transmission from a…

Signal Processing · Electrical Eng. & Systems 2024-12-11 Sergi Liesegang , Alessio Zappone , Olga Muñoz , Antonio Pascual-Iserte

This paper presents a sophisticated reconfigurable metasurface architecture that introduces an advanced concept of flexible full-array space-time wavefront manipulation with enhanced dynamic capabilities. The practical 2-bit phase-shifting…

Signal Processing · Electrical Eng. & Systems 2024-07-30 Yufei Zhao , Yuan Feng , Afkar Mohamed Ismail , Ziyue Wang , Yong Liang Guan , Yongxin Guo , Chau Yuen

Oscillators designed to function at cryogenic temperatures play a critical role in superconducting electronics and quantum computing by providing stable, low noise signals with minimal energy loss.Here we present a comprehensive numerical…

Emerging Technologies · Computer Science 2025-08-08 Md Mazharul Islam , Md Shafayat Hossain , Kathleen E Hamilton , Ahmedullah Aziz

In this article, we consider a random access scheme for an indoor Internet of Things (IoT) framework that uses optical wireless communication (OWC). We focus on a Slotted ALOHA (SA)-based solution where a number of OWC IoT users contend to…

Information Theory · Computer Science 2021-07-16 Milica Petkovic , Tijana Devaja , Dejan Vukobratovic , Francisco J. Escribano , Cedomir Stefanovic

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

We demonstrate feedback and harmonic locking of chip-scale slot-type optomechanical oscillators to external low-noise reference clocks, with suppressed timing jitter by three orders of magnitude. The feedback and compensation techniques…

In this paper, a discrete reconfigurable intelligent surface (RIS)-assisted spatial shift keying (SSK) multiple-input multiple-output (MIMO) scheme is investigated, in which a direct link between the transmitter and the receiver is…

Information Theory · Computer Science 2024-11-04 Xusheng Zhu , Qingqing Wu , Wen Chen , Xinyuan He , Lexi Xu , Yaxin Zhang

Reconfigurable intelligent surface (RIS) technique stands as a promising signal enhancement or signal cancellation technique for next generation networks. We design a novel passive beamforming weight at RISs in a multiple-input…

Information Theory · Computer Science 2020-03-05 Tianwei Hou , Yuanwei Liu , Zhengyu Song , Xin Sun , Yue Chen

Oscillator Ising Machines (OIMs) and probabilistic bit (p-bit)-based computing platforms have emerged as promising paradigms for tackling complex combinatorial optimization problems. Although traditionally viewed as distinct approaches,…

Computational Physics · Physics 2026-01-26 E. M. Hasantha Ekanayake , Nikhat Khan , Nikhil Shukla

Complex envelope and reduced phase simulation models describing the dynamical behavior of an optoelectronic oscillator (OEO) under injection by an external source are described. The models are built on the foundations of a previously…

Optics · Physics 2023-09-26 A. Banerjee , T. J. Hall

This paper investigates the performance of one- and two-sided amplitude shift keying (ASK) modulations in noncoherent single-input single-output (SISO) wireless communication systems assisted by a reconfigurable intelligent surface (RIS).…

Information Theory · Computer Science 2024-12-24 Sambit Mishra , Soumya P. Dash , George C. Alexandropoulos

We propose a novel concept of obtaining oscillations with frequencies in very-high frequency (VHF) and ultra-high frequency (UHF) bands. A traditional spin torque nano-oscillator (STNO) consists of at least one pinned layer (PL) and one…

Mesoscale and Nanoscale Physics · Physics 2017-06-05 Gaurav Gupta , Zhifeng Zhu , Gengchiau Liang