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Aerial relays have been regarded as an alternative and promising solution to extend and improve satellite-terrestrial communications, as the probability of line-of-sight transmissions increases compared with adopting terrestrial relays. In…

信号处理 · 电气工程与系统科学 2020-06-23 Gaofeng Pan , Jia Ye , Yongqiang Zhang , Mohamed-Slim Alouini

Hybrid aerial-terrestrial communication networks based on Low Altitude Platforms (LAPs) are expected to optimally meet the urgent communication needs of emergency relief and recovery operations for tackling large scale natural disasters.…

网络与互联网体系结构 · 计算机科学 2016-11-18 Sithamparanathan Kandeepan , Karina Gomez , Laurent Reynaud , Tinku Rasheed

Deep learning (DL) has shown the great potentials to break the bottleneck of communication systems. This article provides an overview on the recent advancements in DL-based physical layer communications. DL can improve the performance of…

信息论 · 计算机科学 2019-02-20 Zhijin Qin , Hao Ye , Geoffrey Ye Li , Biing-Hwang Fred Juang

Relaying is considered a promising cost-efficient solution in 3GPP LTE-Advanced for coverage extension and throughput enhancement. The compact physical characteristics and low power requirements of the relay nodes offer more flexible…

网络与互联网体系结构 · 计算机科学 2012-02-02 Omer Bulakci

A platoon-based driving is a technology allowing vehicles to follow each other at close distances to, e.g., save fuel. However, it requires reliable wireless communications to adjust their speeds. Recent studies have shown that the…

网络与互联网体系结构 · 计算机科学 2023-06-29 Marcin Hoffmann , Pawel Kryszkiewicz , Adrian Kliks

Low Earth orbit (LEO) satellites have been envisioned as a significant component of the sixth generation (6G) network architecture for achieving ubiquitous coverage and seamless access. However, the implementation of LEO satellites is…

信息论 · 计算机科学 2024-06-10 Chenyu Wu , Shuai Han , Qian Chen , Yu Wang , Weixiao Meng , Abderrahim Benslimane

We study the electronic transport properties of dual-gated bilayer graphene devices. We focus on the regime of low temperatures and high electric displacement fields, where we observe a clear exponential dependence of the resistance as a…

介观与纳米尺度物理 · 物理学 2010-10-12 Thiti Taychatanapat , Pablo Jarillo-Herrero

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

Low-dimensional embeddings (LDEs) of high-dimensional data are ubiquitous in science and engineering. They allow us to quickly understand the main properties of the data, identify outliers and processing errors, and inform the next steps of…

机器学习 · 计算机科学 2024-06-17 Jonas Fischer , Rong Ma

This paper exploits the multi-antenna technique to enhance the covert communication performance in a relay system, where a source S conducts covert communication with a destination D via a relay R, subjecting to the detections of…

密码学与安全 · 计算机科学 2024-07-17 He Zhu , Huihui Wu , Wei Su , Xiaohong Jiang

This work considers the secure and reliable information transmission in two-hop relay wireless networks without the information of both eavesdropper channels and locations. While the previous work on this problem mainly studied infinite…

网络与互联网体系结构 · 计算机科学 2012-12-03 Yulong Shen , Xiaohong Jiang , Jianfeng Ma , Weisong Shi

Computational studies of basic models of strongly-correlated electron systems can provide guidance in the search for new materials as well as insight into the physical mechanisms responsible for their properties. Here, we illustrate this by…

强关联电子 · 物理学 2009-11-07 D. J. Scalapino

Hardware impairments in physical transceivers are known to have a deleterious effect on communication systems; however, very few contributions have investigated their impact on relaying. This paper quantifies the impact of transceiver…

信息论 · 计算机科学 2014-05-02 Michail Matthaiou , Agisilaos Papadogiannis , Emil Björnson , Mérouane Debbah

High mobility two-dimensional electron gases (2DEGs) underpin today's silicon based devices and are of fundamental importance for the emerging field of oxide electronics. Such 2DEGs are usually created by engineering band offsets and charge…

强关联电子 · 物理学 2016-12-13 S. McKeown Walker , F. Y. Bruno , F. Baumberger

It has recently been suggested in this journal by Benford (2019) that "Lurkers" in the form of interstellar exploration probes could be present in the solar system. Similarly, extraterrestrial intelligence could send long-lived probes to…

科普物理 · 物理学 2020-02-19 Michael Hippke

We experimentally demonstrate a novel interferometric architecture for next-generation gravity missions, featuring a laser ranging interferometer (LRI) that enables monoaxial transmission and reception of laser beams between two optical…

Interplanetary links (IPL) serve as crucial enablers for space exploration, facilitating secure and adaptable space missions. An integrated IPL with inter-satellite communication (IP-ISL) establishes a unified deep space network, expanding…

信号处理 · 电气工程与系统科学 2024-10-29 Eray Guven , Pablo Camacho , Elham Baladi , Gunes Karabulut Kurt

In order to follow up with mission-critical applications, new features need to be carried to satisfy a reliable communication with reduced latency. With this regard, this paper proposes a low latency cooperative transmission scheme, where…

信息论 · 计算机科学 2018-02-13 Fatima Ezzahra Airod , Houda Chafnaji , Halim Yanikomeroglu

The capabilities of multi-antenna technology have recently been significantly enhanced by the proliferation of extra large array architectures. The high dimensionality of these systems implies that communications take place in the nearfield…

信息论 · 计算机科学 2024-12-11 Xavier Mestre , Adrian Agustin , David Sarda

A half-duplex wireless network with 6 lateral nodes, 3 transmitters and 3 receivers, and a central relay is considered. The transmitters wish to send information to their corresponding receivers via a two phase communication protocol. The…

信息论 · 计算机科学 2010-01-22 Hamidreza Ebrahimzadeh Saffar , Patrick Mitran