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Radio frequency (RF) fingerprinting techniques provide a promising supplement to cryptography-based approaches but rely on dedicated equipment to capture in-phase and quadrature (IQ) samples, hindering their wide adoption. Recent advances…

信号处理 · 电气工程与系统科学 2025-10-28 Yong Huang , Wenjing Wang , Dalong Zhang , Junjie Wang , Chen Chen , Yan Cao , Wei Wang

We consider the problem of covert communication over a state-dependent channel, where the transmitter has causal or noncausal knowledge of the channel states. Here, "covert" means that a warden on the channel should observe similar…

信息论 · 计算机科学 2017-08-09 Si-Hyeon Lee , Ligong Wang , Ashish Khisti , Gregory W. Wornell

The downlink channel state information (CSI) estimation and low overhead acquisition are the major challenges for massive MIMO systems in frequency division duplex to enable high MIMO gain. Recently, numerous studies have been conducted to…

信息论 · 计算机科学 2023-08-07 Mingming Zhao , Lin Liu , Lifu Liu , Mengke Li , Qi Tian

Massive multiple-input multiple-output (MIMO) systems need to support massive connectivity for the application of the Internet of things (IoT). The overhead of channel state information (CSI) acquisition becomes a bottleneck in the system…

信息论 · 计算机科学 2017-07-31 Ruichen Deng , Zhiyuan Jiang , Sheng Zhou , Zhisheng Niu

Compressive sensing (CS) has been studied and applied in structural health monitoring for wireless data acquisition and transmission, structural modal identification, and spare damage identification. The key issue in CS is finding the…

信号处理 · 电气工程与系统科学 2019-03-25 Yuequan Bao , Zhiyi Tang , Hui Li

Channels of satellite communication are usually modeled as Rician fading channels with very large Rician factor or Gaussian channels. Therefore, when a legitimate user is close to an eavesdropping user, the legitimate channel is…

信息论 · 计算机科学 2018-08-16 Shuai Han , Xiangxue Tai , Weixiao Meng , Cheng Li

Wireless sensor networks are among the most promising technologies of the current era because of their small size, lower cost, and ease of deployment. With the increasing number of wireless sensors, the probability of generating missing…

信号处理 · 电气工程与系统科学 2022-12-27 Anindya Mondal , Mayukhmali Das , Aditi Chatterjee , Palaniandavar Venkateswaran

This work introduces DeepCRF, a deep learning framework designed for channel state information-based radio frequency fingerprinting (CSI-RFF). The considered CSI-RFF is built on micro-CSI, a recently discovered radio-frequency (RF)…

信号处理 · 电气工程与系统科学 2024-03-26 Ruiqi Kong , He Chen

Reconfigurable intelligent surfaces (RISs) have been recently considered as a promising candidate for energy-efficient solutions in future wireless networks. Their dynamic and lowpower configuration enables coverage extension, massive…

Wireless covert channels promise to exfiltrate information with high bandwidth by circumventing traditional access control mechanisms. Ideally, they are only accessible by the intended recipient and---for regular system…

网络与互联网体系结构 · 计算机科学 2015-05-06 Jiska Classen , Matthias Schulz , Matthias Hollick

Multi-antenna precoding effectively mitigates the interference in wireless networks. However, the precoding efficiency can be significantly degraded by the overhead due to the required feedback of channel state information (CSI). This paper…

信息论 · 计算机科学 2010-09-20 Kaibin Huang , Rui Zhang

In frequency-division duplexing systems, the downlink channel state information (CSI) acquisition scheme leads to high training and feedback overheads. In this paper, we propose an uplink-aided downlink channel acquisition framework using…

信息论 · 计算机科学 2024-10-28 Jiajia Guo , Chao-Kai Wen , Shi Jin

Accurate channel state information (CSI) is critical to the performance of wireless communication systems, especially with the increasing scale and complexity introduced by 5G and future 6G technologies. While artificial intelligence (AI)…

信息论 · 计算机科学 2025-07-08 Jiajia Guo , Peiwen Jiang , Chao-Kai Wen , Shi Jin , Jun Zhang

The performance of federated learning (FL) over wireless networks critically depends on accurate and timely channel state information (CSI) across distributed devices. This requirement is tightly linked to how rapidly the channel gains…

信息论 · 计算机科学 2025-10-31 Mehdi Karbalayghareh , David J. Love , Christopher G. Brinton

In the near future, the Internet of Things will interconnect billions of devices, forming a vast network where users sporadically transmit short messages through multi-path wireless channels. These channels are characterized by the…

信息论 · 计算机科学 2025-05-05 Sajad Daei , Saeed Razavikia , Mikael Skoglund , Gabor Fodor , Carlo Fischione

This article addresses an innovative concept to enhance the security for IoT applications in the case of Simultaneous Wireless Information and Power Transfer. This is achieved by integrating a complementary security and identification…

网络与互联网体系结构 · 计算机科学 2024-10-28 Taki Eddine Djidjekh , Lamoussa Sanogo , Gaël Loubet , Alassane Sidibe , Daniela Dragomirescu , Alexandru Takacs

Novel Internet-of-Things (IoT) access technologies are emerging as part of the next generation cellular networks. These technologies are specifically oriented towards energy-limited IoT devices that are scattered far away from their serving…

信息论 · 计算机科学 2022-04-20 Bisma Manzoor , Bassel Al Homssi , Akram Al-Hourani

Feedback of quantized channel state information (CSI), called limited feedback, enables transmit beamforming in multiple-input-multiple-output (MIMO) wireless systems with a small amount of overhead. Due to its efficiency, beamforming with…

信息论 · 计算机科学 2008-05-05 Kaibin Huang , Robert W. Heath , Jeffrey G. Andrews

Consumer Internet of Things (IoT) devices often leverage the local network to communicate with the corresponding companion app or other devices. This has benefits in terms of efficiency since it offloads the cloud. ENISA and NIST security…

密码学与安全 · 计算机科学 2024-04-23 Sara Lazzaro , Vincenzo De Angelis , Anna Maria Mandalari , Francesco Buccafurri

Video capture is the most extensively utilized human perception source due to its intuitively understandable nature. A desired video capture often requires multiple environmental conditions such as ample ambient-light, unobstructed space,…

计算机视觉与模式识别 · 计算机科学 2022-12-29 Xiang Li , Rabih Younes