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Millimeter-wave (mmWave) and terahertz (THz) communication systems require large antenna arrays and use narrow directive beams to ensure sufficient receive signal power. However, selecting the optimal beams for these large antenna arrays…

信息论 · 计算机科学 2024-02-23 Shoaib Imran , Gouranga Charan , Ahmed Alkhateeb

AcubeSAT is an open-source CubeSat mission aiming to explore the effects of microgravity and radiation on eukaryotic cells using a compact microfluidic lab-on-a-chip platform. It is developed by SpaceDot, a volunteer, interdisciplinary…

This paper describes the mechanical design of the downstream beam transport line for the second axis of the Dual Axis Radiographic Hydrodynamic Test (DARHT II) Facility. The DARHT-II project is a collaboration between LANL, LBNL and LLNL.…

加速器物理 · 物理学 2007-05-23 G. A. Westenskow , L. R. Bertolini , P. T. Duffy , A. C. Paul

We propose a low-power mobile low earth orbit (LEO) satellite communication architecture, employing double reconfigurable intelligent surfaces (RIS) to enhance energy efficiency and signal performance. With a distance between RISs that…

System-level telemetry is fundamental to modern remote monitoring, predictive maintenance, and AI-driven infrastructure optimisation. Existing telemetry encodings such as JSON, JSON Lines, CBOR, and Protocol Buffers were designed for…

软件工程 · 计算机科学 2026-01-06 Henry Ndou

With the rapid advances in IoT, edge and cloud computing solutions, it is critical to educate and train students in computer science and engineering in various aspects of IoT-edge-cloud (IoT-E-C) system architecture implementations. We…

网络与互联网体系结构 · 计算机科学 2021-04-27 Jasenka Dizdarevic , Admela Jukan

The observation of the low-energy $\gamma$-ray (0.1-30 MeV) sky has been significantly limited since the COMPTEL instrument was decommissioned aboard the Compton Gamma-ray Observer (CGRO) satellite in 2000. The exploration of $\gamma$-ray…

天体物理仪器与方法 · 物理学 2024-12-25 Rishank Diwan , Kees de Kuijper , Partha Sarathi Pal , Andreas Ritter , Pablo Saz Parkinson , Andy C. T. Kong , Quentin Parker

With the rapid growth of Low Earth Orbit (LEO) satellite networks, satellite-IoT systems using the LoRa technique have been increasingly deployed to provide widespread Internet services to low-power and low-cost ground devices. However, the…

网络与互联网体系结构 · 计算机科学 2025-11-25 Yimin Zhao , Weibo Wang , Xiong Wang , Linghe Kong , Jiadi Yu , Yifei Zhu , Shiyuan Li , Chong He , Guihai Chen

Integrated sensing and communication (ISAC) is a promising paradigm for future wireless systems due to spectrum reuse, hardware sharing, and joint waveform design. In dynamic scenes, Doppler shifts degrade both sensing and communication,…

信号处理 · 电气工程与系统科学 2025-12-04 Yuan Liu , Wen-Xuan Long , M. R. Bhavani Shankar , Marco Moretti , Rui Chen , Björn Ottersten

The proliferation of Internet of Things (IoT) networks has created an urgent need for sustainable energy solutions, particularly for the battery-constrained spatially distributed IoT nodes. While low-altitude uncrewed aerial vehicles (UAVs)…

网络与互联网体系结构 · 计算机科学 2025-10-31 Chuang Zhang , Geng Sun , Jiahui Li , Jiacheng Wang , Qingqing Wu , Dusit Niyato , Shiwen Mao , Tony Q. S. Quek

Index modulation (IM) brings the reduction of power consumption and complexity of the transmitter to classical multiple-input multiple-output orthogonal frequency division multiplexing (MIMO-OFDM) systems. However, due to the introduction…

信号处理 · 电气工程与系统科学 2019-11-14 Jinxue Liu , Hancheng Lu

This paper investigates the energy efficiency of a multiple-input multiple-output (MIMO) integrated sensing and communications (ISAC) system, in which one multi-antenna base station (BS) transmits unified ISAC signals to a multi-antenna…

信息论 · 计算机科学 2023-06-28 Guanlin Wu , Yuan Fang , Jie Xu , Zhiyong Feng , Shuguang Cui

Hokkaido University and Tohoku University have been developing and operating a constellation of 50-cm-class microsatellites for Earth observation. DIWATA-1, launched in 2016, was deployed into a circular orbit at an altitude of…

系统与控制 · 电气工程与系统科学 2026-01-21 Yuji Sakamoto , Junichi Kurihara , Shinya Fujita , Yuji Sato , Toshinori Kuwahara

Low-Earth-orbit (LEO) satellite communication systems face challenges due to high satellite mobility, which hinders the reliable acquisition of instantaneous channel state information at the transmitter (CSIT) and subsequently degrades…

信号处理 · 电气工程与系统科学 2025-12-17 Yunnuo Xu , Yumeng Zhang , Yijie Mao , Bruno Clerck , Yun Hee Kim , Yujun Li

There is no doubt that we need to keep our eyes on the sky as satellite networks aim to address the demands of 6G and beyond communications systems. On the other hand, the existence of millions of space debris pieces, large or small, poses…

信号处理 · 电气工程与系统科学 2023-06-16 Gizem Sümen , Güneş Karabulut Kurt , Ali Görçin

Sloshing Platform for In-Orbit Controller Experimentation is an ambitious, student run mission to design and fly a cubesat to study fluid sloshing in spacecraft. The project will examine zero-g propellant sloshing from an experimental…

系统与控制 · 电气工程与系统科学 2024-12-31 Michael fogel , Snigdha Sushil Mishra , Laurent Burlion

CubeSats are small satellites used for scientific experiments because they cost less than full sized satellites. Each CubeSat uses an on-board computer. The on-board computer performs sensor measurements, data processing, and CubeSat…

空间物理 · 物理学 2022-11-07 Brosnan Yuen , Mihai Sima

Line Intensity Mapping (LIM) is a new observational technique that uses low-resolution observations of line emission to efficiently trace the large-scale structure of the Universe out to high redshift. Common mm/sub-mm emission lines are…

Massive connectivity and low latency are two important challenges for the Internet of Things (IoT) to achieve the Quality of Service (QoS) provisions required by the numerous devices it is designed to service. Motivated by these challenges,…

信号处理 · 电气工程与系统科学 2018-06-01 Tiejun Lv , Yuyu Ma , Jie Zeng , P. Takis Mathiopoulos

Physical-layer security is regaining traction in the research community, due to the performance boost introduced by deep learning classification algorithms. This is particularly true for sender authentication in wireless communications via…

密码学与安全 · 计算机科学 2020-10-13 Gabriele Oligeri , Simone Raponi , Savio Sciancalepore , Roberto Di Pietro