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相关论文: A Software-Defined and Distributed Wi-Fi Channel-S…

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Obtaining accurate global channel state information (CSI) at multiple transmitter devices is critical to the performance of many coordinated transmission schemes. Practical CSI local feedback often leads to noisy and partial CSI estimates…

信息论 · 计算机科学 2017-03-22 Qianrui Li , David Gesbert , Nicolas Gresset

Reconfigurable intelligent surfaces (RISs) have been recognized as a revolutionary technology for future wireless networks. However, RIS-assisted communications have to continuously tune phase-shifts relying on accurate channel state…

信号处理 · 电气工程与系统科学 2025-01-15 Jie Zhang , Yiyang Ni , Jun Li , Guangji Chen , Zhe Wang , Long Shi , Shi Jin , Wen Chen , H. Vincent Poor

Thanks to the ubiquitousness of Wi-Fi access points and devices, Wi-Fi sensing enables transformative applications in remote health care, security, and surveillance. Existing work has explored the usage of machine learning on channel state…

网络与互联网体系结构 · 计算机科学 2022-04-21 Niloofar Bahadori , Jonathan Ashdown , Francesco Restuccia

As integrated sensing and communication (ISAC) capabilities become more prevalent in the mobile 6G radio landscape, there is a substantial opportunity to enhance situational awareness across diverse applications through multi-static radar…

Obtaining accurate Channel State Information (CSI) at the transmitters (TX) is critical to many cooperation schemes such as Network MIMO, Interference Alignment etc. Practical CSI feedback and limited backhaul-based sharing inevitably…

信息论 · 计算机科学 2015-02-13 Paul de Kerret , David Gesbert , Umer Salim

This article investigates the basic design principles for a new Wireless Network Operating System (WNOS), a radically different approach to software-defined networking (SDN) for infrastructure-less wireless networks. Departing from…

网络与互联网体系结构 · 计算机科学 2021-05-24 Zhangyu Guan , Lorenzo Bertizzolo , Emrecan Demirors , Tommaso Melodia

Novel industrial wireless applications require wideband, real-time channel characterization due to complex multipath propagation. Rapid machine motion leads to fast time variance of the channel's reflective behavior, which must be captured…

信号处理 · 电气工程与系统科学 2018-05-04 Niels Hendrik Fliedner , Dimitri Block , Uwe Meier

We study the Degrees-of-Freedom (DoF) in a wireless setting in which K Transmitters (TXs) aim at jointly serving K users. The performance is studied when the TXs are faced with a distributed Channel State Information (CSI) configuration in…

信息论 · 计算机科学 2020-05-14 Antonio Bazco-Nogueras , Paul de Kerret , David Gesbert , Nicolas Gresset

Software-defined networking is considered a promising new paradigm, enabling more reliable and formally verifiable communication networks. However, this paper shows that the separation of the control plane from the data plane, which lies at…

密码学与安全 · 计算机科学 2024-03-05 Robert Krösche , Kashyap Thimmaraju , Liron Schiff , Stefan Schmid

We consider the data-aided channel estimation (CE) problem in a reconfigurable intelligent surface (RIS)-assisted wireless communication system, where the channel and information symbols are estimated jointly during the CE phase,…

信号处理 · 电气工程与系统科学 2025-06-17 Amarilton Lopes Magalhães , André Lima Férrer de Almeida , Gilderlan Tavares de Araújo

This work demonstrates the potential of deep reinforcement learning techniques for transmit power control in wireless networks. Existing techniques typically find near-optimal power allocations by solving a challenging optimization problem.…

信号处理 · 电气工程与系统科学 2020-09-15 Yasar Sinan Nasir , Dongning Guo

This paper investigates the effect of imperfect channel state information (CSI) on the over-the-air computation (AirComp) system, in which multiple wireless devices (WDs) send individual messages to one access point (AP) for distributed…

信息论 · 计算机科学 2022-03-01 Yilong Chen , Guangxu Zhu , Jie Xu

Indoor positioning systems (IPS) are emerging technologies due to an increasing popularity and demand in location based service (LBS). Because traditional positioning systems such as GPS are limited to outdoor applications, many IPS have…

信号处理 · 电气工程与系统科学 2019-07-08 Erick Schmidt , David Akopian

The capacity of the semi-deterministic relay channel (SD-RC) with non-causal channel state information (CSI) only at the encoder and decoder is characterized. The capacity is achieved by a scheme based on cooperative-bin-forward. This…

信息论 · 计算机科学 2017-04-04 Ido B. Gattegno , Haim H. Permuter , Shlomo Shamai , Ayfer Özgür

We consider a two-hop wireless network where a transmitter communicates with a receiver via $M$ relays with an amplify-and-forward (AF) protocol. Recent works have shown that sophisticated linear processing such as beamforming and…

信息论 · 计算机科学 2008-03-20 Mari Kobayashi , Xavier Mestre

In this study, we propose a low-cost and portable millimeter-wave software-defined radio (SDR) for wireless experimentation in the 60 GHz band. The proposed SDR uses Xilinx RFSoC2x2 and Sivers EVK06002 homodyne transceiver and provides a…

信号处理 · 电气工程与系统科学 2023-02-17 Alphan Şahin , Mihail L. Sichitiu , İsmail Guvenç

We consider the distributed channel access problem for a system consisting of multiple control subsystems that close their loop over a shared wireless network. We propose a distributed method for providing deterministic channel access…

系统与控制 · 电气工程与系统科学 2024-10-28 Tahmoores Farjam , Henk Wymeersch , Themistoklis Charalambous

Covert channels (CCs) in wireless chips pose a serious security threat, as they enable the exfiltration of sensitive information from the chip to an external attacker. In this work, we propose an AI-based defense mechanism deployed at the…

This paper proposes a novel, highly effective spectrum sensing algorithm for cognitive radio and whitespace applications. The proposed spectral covariance sensing (SCS) algorithm exploits the different statistical correlations of the…

网络与互联网体系结构 · 计算机科学 2010-05-07 Jaeweon Kim , Jeffrey G. Andrews

Channel charting (CC) applies dimensionality reduction to channel state information (CSI) data at the infrastructure basestation side with the goal of extracting pseudo-position information for each user. The self-supervised nature of CC…

信息论 · 计算机科学 2023-12-08 Sueda Taner , Maxime Guillaud , Olav Tirkkonen , Christoph Studer