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The space-based gravitational wave detector LISA will observe in the low-frequency gravitational-wave band (0.1 mHz up to 1 Hz). LISA will search for a variety of expected signals, and when it detects a signal it will have to determine a…

广义相对论与量子宇宙学 · 物理学 2007-05-23 B. F. Schutz

High-mobility wireless communications have received a lot of attentions in the past few years. In this paper, we consider angle-domain Doppler shifts compensation scheme to reduce the channel time variation for the high-mobility uplink from…

信号处理 · 电气工程与系统科学 2019-02-22 Zhinan Hu , Weile Zhang

Reconfigurable Intelligent Surfaces (RISs) are envisioned to be employed in next generation wireless networks to enhance the communication and radio localization services. In this paper, we propose novel localization and tracking algorithms…

We propose a new antenna selection scheme for a massive MIMO system with a single user terminal and a base station with a large number of antennas. We consider a practical scenario where there is a realistic correlation among the antennas…

信息论 · 计算机科学 2015-07-09 De Mi , Mehrdad Dianati , Sami Muhaidat , Yan Chen

We present a tracking algorithm to maintain the communication link between a base station (BS) and a mobile station (MS) in a millimeter wave (mmWave) communication system, where antenna arrays are used for beamforming in both the BS and…

信息论 · 计算机科学 2016-12-19 Kang Gao , Mingming Cai , Ding Nie , Bertrand Hochwald , J. Nicholas Laneman , Huang Huang , Kunpeng Liu

In this renovating era of technology, human life has considerably changed like transport has been transformed from bull cart to aircraft, land line phones to 4G/5G cellular phones, CRT based T. V to LED T. V etc. Human being has perceived…

物理教育 · 物理学 2021-08-10 R. P. Gawade , S. G. Dahotre

Gravitational waves from compact binaries measured by the LIGO and Virgo detectors are routinely analyzed using Markov Chain Monte Carlo sampling algorithms. Because the evaluation of the likelihood function requires evaluating millions of…

We propose a low complexity antenna selection algorithm for low target rate users in cloud radio access networks. The algorithm consists of two phases: In the first phase, each remote radio head (RRH) determines whether to be included in a…

信息论 · 计算机科学 2016-06-03 Jeonghun Park , Robert W. Heath

Grasping deformable objects is not well researched due to the complexity in modelling and simulating the dynamic behavior of such objects. However, with the rapid development of physics-based simulators that support soft bodies, the…

机器人学 · 计算机科学 2021-07-20 Tran Nguyen Le , Jens Lundell , Fares J. Abu-Dakka , Ville Kyrki

Movable antennas (MAs) enhance flexibility in beamforming gain and interference suppression by adjusting position within certain areas of the transceivers. In this paper, we propose an MA-assisted integrated sensing and communication…

信号处理 · 电气工程与系统科学 2025-01-03 Chengjun Jiang , Chensi Zhang , Chongwen Huang , Jianhua Ge , Dusit Niyato , Chau Yuen

The interaction of body worn antennas with the human body causes a significant decrease in the antenna efficiency and a shift in the resonant frequency. A resonant slot in a small conductive box placed on the body has been shown to reduce…

信号处理 · 电气工程与系统科学 2025-01-27 Marta Fernandez , Hugo G. Espinosa , David V. Thiel , Amaia Arrinda

We determine and use a minimal set of numerical simulations to create a simplified model for the spectral response of nanoantennae with respect to their geometric and modeling parameters. The simplified model is then used to rapidly obtain…

光学 · 物理学 2015-05-13 Joshua Borneman , Kuo-Ping Chen , Alex Kildishev , Vladimir Shalaev

Real-time video inference on edge devices like mobile phones and drones is challenging due to the high computation cost of Deep Neural Networks. We present Adaptive Model Streaming (AMS), a new approach to improving performance of efficient…

机器学习 · 计算机科学 2021-04-07 Mehrdad Khani , Pouya Hamadanian , Arash Nasr-Esfahany , Mohammad Alizadeh

The interplay between large antenna apertures and high carrier frequencies in future wireless systems gives rise to near-field communications, where the curvature of spherical wavefronts renders traditional far-field beamforming models…

信号处理 · 电气工程与系统科学 2025-12-02 Panagiotis Gavriilidis , George C. Alexandropoulos

The utilization of RF signals to probe material properties of objects is of huge interest both in academia as well as industry. To this end, a setup is investigated, in which a transmitter equipped with a two-dimensional multi-antenna array…

信息论 · 计算机科学 2022-05-18 Ali Kariminezhad , Soheil Gherekhloo , Aydin Sezgin

Matched-filter based gravitational-wave search pipelines identify candidate events within seconds of their arrival on Earth, offering a chance to guide electromagnetic follow-up and observe multi-messenger events. Understanding the…

天体物理仪器与方法 · 物理学 2024-10-14 Ryan Magee , Richard George , Alvin Li , Ritwik Sharma

Despite numerous successful missions to small celestial bodies, the gravity field of such targets has been poorly characterized so far. Gravity estimates can be used to infer the internal structure and composition of small bodies and, as…

天体物理仪器与方法 · 物理学 2022-02-15 Jacopo Villa , Andrew French , Jay McMahon , Daniel Scheeres , Benjamin Hockman

In our daily life, we often encounter objects that are fragile and can be damaged by excessive grasping force, such as fruits. For these objects, it is paramount to grasp gently -- not using the maximum amount of force possible, but rather…

机器人学 · 计算机科学 2025-07-25 Ken Nakahara , Roberto Calandra

A dynamic and flexible generalized spatial modulation (GSM) framework is proposed for massive MIMO systems. Our framework is leveraged on the utilization of machine learning methods for GSM in order to improve the error performance in…

信号处理 · 电气工程与系统科学 2019-03-12 Selen Gecgel , Caner Goztepe , Gunes Karabulut Kurt

We study the possibility of using matter wave interferometry techniques to build a gravitational wave detector. We derive the response function and find that it contains a term proportional to the derivative of the gravitational wave, a…

广义相对论与量子宇宙学 · 物理学 2008-11-26 Stefano Foffa , Alice Gasparini , Michele Papucci , Riccardo Sturani