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We present the experimental implementation of simultaneous spatial multimode demultiplexing as a distance measurement tool. We first show a simple and intuitive derivation of the Fisher information in the presence of Poissonian noise. We…

光学 · 物理学 2020-08-06 Pauline Boucher , Claude Fabre , Guillaume Labroille , Nicolas Treps

Energy efficiency (EE) is an important aspect of satellite communications. Different with the existing algorithms that typically use the first-order Taylor lower bound approximation to convert non-convex EE maximization (EEM) problems into…

信息论 · 计算机科学 2022-03-15 Chenhao Qi , Yang Yang , Rui Ding , Shichao Jin , Dunge Liu

Thermoelastic distortion resulting from optical absorption by transmissive and reflective optics can cause unacceptable changes in optical systems that employ high power beams. In advanced-generation laser-interferometric gravitational wave…

光学 · 物理学 2015-04-29 Eleanor King , Yuri Levin , David Ottaway , Peter Veitch

This paper investigates the average throughput of a wireless powered communications system, where an energy constrained source, powered by a dedicated power beacon (PB), communicates with a destination. It is assumed that the PB is capable…

信息论 · 计算机科学 2016-11-18 Caijun Zhong , Xiaoming Chen , Zhaoyang Zhang , George Karagiannidis

In ultraviolet communications, the transceiver jitter effects have been ignored in previous studies, which can result in non-negligible performance degradation especially in vibration states or in mobile scenes. To address this issue, we…

信号处理 · 电气工程与系统科学 2024-02-16 Zanqiu Shen , Jianshe Ma , Serge B. Provost , Ping Su

Integrated sensing and communication (ISAC) has emerged as a key paradigm for next-generation wireless systems, which allows wireless resources to be used for data transmission and target sensing simultaneously. In this paper, multi-user…

信号处理 · 电气工程与系统科学 2026-03-19 Ling He , Vaibhav Kumar , Roberto Bomfin , Yingyang Chen , Miaowen Wen , Marwa Chafii

Energy harvesting is a promising solution to prolong the operation of energy-constrained wireless networks. In particular, scavenging energy from ambient radio signals, namely wireless energy harvesting (WEH), has recently drawn significant…

信息论 · 计算机科学 2012-11-01 Liang Liu , Rui Zhang , Kee-Chaing Chua

In this paper, we propose adaptive techniques for multi-user multiple input and multiple output~(MU-MIMO) cellular communication systems, to solve the problem of energy efficient communications with heterogeneous delay-aware traffic. In…

信号处理 · 电气工程与系统科学 2020-03-05 Kunlun Wang , Wen Chen , Jun Li , Qingqing Wu , Branka Vucetic

A correlation between the angle of multiple scattering and the ionization energy loss for relativistic electrons in an amorphous medium is computed by solving the combined transport equation. The correlation is found to be the most…

高能物理 - 唯象学 · 物理学 2021-06-02 M. V. Bondarenco

We consider the problem of estimating the 3D orientation of a user, using the downlink mmWave signals received from multiple base stations. We show that the received signals from several base stations, having known positions, can be used to…

信号处理 · 电气工程与系统科学 2021-01-06 Mohammad A. Nazari , Gonzalo Seco-Granados , Pontus Johannisson , Henk Wymeersch

Numerous studies showed that concurrent transmissions can boost wireless network performance despite collisions. While these works provide empirical evidence that concurrent transmissions may be received reliably, existing signal capture…

网络与互联网体系结构 · 计算机科学 2014-08-19 Matthias Wilhelm , Vincent Lenders , Jens B. Schmitt

Collisions with hidden terminals is a major cause of performance degradation in 802.11 and likewise wireless networks. Carrier sense multiple access with collision avoidance (CSMA/CA) is utilized to avoid collisions at the cost of spatial…

网络与互联网体系结构 · 计算机科学 2014-01-30 Zhiyi Zhou , Dongning Guo , Michael L. Honig

A new method of angle estimation of multiple targets using a distributed interferometric antenna array and wideband space-time modulation is presented in this work. Interferometric array measurements of angle of arrival are generally…

信号处理 · 电气工程与系统科学 2021-11-24 Stavros Vakalis , Jeffrey A. Nanzer

This paper presents Bit-Interleaved Coded Modulation metrics for joint estimation detection using training or reference signal transmission strategies for short to long block length channels. We show that it is possible to enhance the…

信息论 · 计算机科学 2025-02-11 Mody Sy , Raymond Knopp

This paper tackles the challenge of wideband MIMO channel estimation within indoor millimeter-wave scenarios. Our proposed approach exploits the integrated sensing and communication paradigm, where sensing information aids in channel…

信号处理 · 电气工程与系统科学 2023-09-27 Silvia Mura , Marouan Mizmizi , Umberto Spagnolini , Athina Petropulu

Omnidirectional path loss models are vital for radiosystem design in wireless communication systems, as they allow engineers to perform network simulations for systems with arbitrary antenna patterns. At millimeter-wave frequencies, channel…

信息论 · 计算机科学 2015-12-03 Shu Sun , George R. MacCartney , Mathew K. Samimi , Theodore S. Rappaport

Integrated localization and communication systems aim to reuse communication waveforms for simultaneous data transmission and localization, but delay resolution is fundamentally limited by the available bandwidth. In practice, large…

信号处理 · 电气工程与系统科学 2026-01-27 Jialun Kou , Achiel Colpaert , Zhuangzhuang Cui , Sofie Pollin

This paper studies power-efficient uplink transmission design for federated learning (FL) that employs over-the-air analog aggregation and multi-antenna beamforming at the server. We jointly optimize device transmit weights and receive…

信息论 · 计算机科学 2025-01-31 Faeze Moradi Kalarde , Min Dong , Ben Liang , Yahia A. Eldemerdash Ahmed , Ho Ting Cheng

Delay alignment modulation (DAM) is an innovative broadband modulation technique well suited for millimeter wave (mmWave) and terahertz (THz) massive multiple-input multiple-output (MIMO) communication systems. Leveraging the high spatial…

信号处理 · 电气工程与系统科学 2024-10-23 Xingwei Wang , Haiquan Lu , Jieni Zhang , Yong Zeng

The hexagonal warping effect on transport properties and Goos-H\"anchen (GH) lateral shift of electrons on the surface of a topological insulator with a potential barrier is investigated theoretically. Due to the warped Fermi surface for…

介观与纳米尺度物理 · 物理学 2022-02-22 Hassan Ghadiri , Alireza Saffarzadeh