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We investigate fast data aggregation via over-the-air computation (AirComp) over wireless networks. In this scenario, an access point (AP) with multiple antennas aims to recover the arithmetic mean of sensory data from multiple wireless…

Information Theory · Computer Science 2024-04-23 Hongbin Zhu , Hua Qian

Secure communication in the Multi-user and Multi-eavesdropper (MUME) scenario is considered in this paper. It has be shown that secrecy can be improved when the transmitter simultaneously transmits information-bearing signal to the intended…

Information Theory · Computer Science 2020-03-25 Kun Xie , Wen Chen , Lili Wei

Integrated sensing and communications (ISAC) systems employ dual-functional signals to simultaneously accomplish radar sensing and wireless communication tasks. However, ISAC systems open up new sensing security vulnerabilities to malicious…

Signal Processing · Electrical Eng. & Systems 2023-12-05 Jiaqi Zou , Christos Masouros , Fan Liu , Songlin Sun

To further preserve model weight privacy and improve model performance in Federated Learning (FL), FL via Over-the-Air Computation (AirComp) scheme based on dynamic power control is proposed. The edge devices (EDs) transmit the signs of…

Machine Learning · Computer Science 2023-08-08 Anbang Zhang , Shuaishuai Guo , Shuai Liu

We study the problem of securely estimating the states of an unstable dynamical system subject to nonstochastic disturbances. The estimator obtains all its information through an uncertain channel which is subject to nonstochastic…

The problem of reliable function computation is extended by imposing privacy, secrecy, and storage constraints on a remote source whose noisy measurements are observed by multiple parties. The main additions to the classic function…

Information Theory · Computer Science 2023-07-19 Onur Günlü

This work studies a beamforming design for downlink transmission of a multi-user multiple-input single-output (MISO) system where each legitimate user employs a power splitting (PS) based simultaneous wireless information and power transfer…

Information Theory · Computer Science 2018-09-13 Miao Zhang , Kanapathippillai Cumanan , Lei Ni , Hang Hu Alister G. Burr , Zhiguo Ding

This paper investigates physical layer security for a large-scale WSN with random multiple access, where each fusion center in the network randomly schedules a number of sensors to upload their sensed data subject to the overhearing of…

Information Theory · Computer Science 2022-04-14 Tong-Xing Zheng , Xin Chen , Chao Wang , Kai-Kit Wong , Jinhong Yuan

This paper investigates the fundamental performance limits of the two-user interference channel in the presence of an external eavesdropper. In this setting, we construct an inner bound, to the secrecy capacity region, based on the idea of…

Information Theory · Computer Science 2015-03-13 O. Ozan Koyluoglu , Hesham El Gamal

The capacity of the Gaussian wiretap channel model is analyzed when there are multiple antennas at the sender, intended receiver and eavesdropper. The associated channel matrices are fixed and known to all the terminals. A computable…

Information Theory · Computer Science 2016-11-15 Ashish Khisti , Gregory Wornell

In this paper, we investigate secure communication over sparse millimeter-wave (mm-Wave) massive multiple-input multiple-output (MIMO) channels by exploiting the spatial sparsity of legitimate user's channel. We propose a secure…

Information Theory · Computer Science 2019-11-19 Jindan Xu , Wei Xu , Derrick Wing Kwan Ng , A. Lee Swindlehurst

In this paper, we investigate the robust outage constrained transmission design for an intelligent reflecting surface (IRS) aided secure communication system. We assume that a single-antenna legitimate receiver (Bob) served by a…

Signal Processing · Electrical Eng. & Systems 2024-10-30 Sheng Hong , Cunhua Pan , Gui Zhou , Hong Ren , Kezhi Wang

This letter investigates the secret communication problem for a fluid antenna system (FAS)-assisted wiretap channel, where the legitimate transmitter transmits an information-bearing signal to the legitimate receiver, and at the same time,…

Information Theory · Computer Science 2024-07-03 Hao Xu , Kai-Kit Wong , Wee Kiat New , Guyue Li , Farshad Rostami Ghadi , Yongxu Zhu , Shi Jin , Chan-Byoung Chae , Yangyang Zhang

Analog machine-learning hardware platforms promise greater speed and energy efficiency than their digital counterparts. Specifically, over-the-air analog computation allows offloading computation to the wireless propagation through…

Signal Processing · Electrical Eng. & Systems 2025-05-09 Mengbing Liu , Jiancheng An , Chongwen Huang , Chau Yuen

This work considers unmanned aerial vehicle (UAV) networks for collecting data covertly from ground users. The full-duplex UAV intends to gather critical information from a scheduled user (SU) through wireless communication and generate…

Signal Processing · Electrical Eng. & Systems 2019-06-21 Xiaobo Zhou , Shihao Yan , Feng Shu , Riqing Chen , Jun Li

This paper investigates unmanned aerial vehicle (UAV)-aided jamming technique for enabling physical layer keyless security in scenarios where the exact eavesdropper location is unknown. We assume that the unknown eavesdropper location is…

Information Theory · Computer Science 2020-08-10 Christantus O. Nnamani , Muhammad R. A. Khandaker , Mathini Sellathurai

In this paper, we study resource allocation design for secure communication in intelligent reflecting surface (IRS)-assisted multiuser multiple-input single-output (MISO) communication systems. To enhance physical layer security, artificial…

Information Theory · Computer Science 2019-10-29 Dongfang Xu , Xianghao Yu , Yan Sun , Derrick Wing Kwan Ng , Robert Schober

To support the unprecedented growth of the Internet of Things (IoT) applications, tremendous data need to be collected by the IoT devices and delivered to the server for further computation. By utilizing the same signals for both radar…

Information Theory · Computer Science 2022-02-23 Xiaoyang Li , Fan Liu , Ziqin Zhou , Guangxu Zhu , Shuai Wang , Kaibin Huang , Yi Gong

This paper studies the problem of remote state estimation in the presence of a passive eavesdropper. A sensor measures a linear plant's state and transmits it to an authorized user over a packet-dropping channel, which is susceptible to…

Systems and Control · Computer Science 2018-09-21 Anastasios Tsiamis , Konstantinos Gatsis , George Pappas

Non-coherent over-the-air (NCOTA) computation enables low-latency and bandwidth-efficient decentralized optimization by exploiting the average energy superposition property of wireless channels. It has recently been proposed as a powerful…

Signal Processing · Electrical Eng. & Systems 2026-02-16 Nicolò Michelusi
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