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In this paper, an extended large wireless network under the secrecy constraint is considered. In contrast to works which use idealized assumptions, a more realistic network situation with unknown eavesdroppers locations is investigated: the…

信息论 · 计算机科学 2016-04-26 Amir Hossein Hadavi , Narges Kazempour , Mahtab Mirmohseni , Mohammad Reza Aref

The amount of sensitive data, which is transmitted wirelessly will increase with future technologies. This raises many questions about secure data transmission. Besides cryptography, information-theoretic security gained increasing…

信息论 · 计算机科学 2021-01-18 Karl-Ludwig Besser , Eduard A. Jorswieck

In this paper, we study a secure integrated sensing and communication (ISAC) system where one multi-antenna base station (BS) simultaneously serves a downlink communication user and senses the location of a target that may potentially serve…

信息论 · 计算机科学 2023-06-08 Kaiyue Hou , Shuowen Zhang

We study privacy-aware communication over a wiretap channel using end-to-end learning. Alice wants to transmit a source signal to Bob over a binary symmetric channel, while passive eavesdropper Eve tries to infer some sensitive attribute of…

信息论 · 计算机科学 2022-02-15 Ecenaz Erdemir , Pier Luigi Dragotti , Deniz Gunduz

In this paper, we consider the broadcast channel with confidential messages and external eavesdroppers (BCCE), where a multi-antenna base station simultaneously communicates to multiple potentially malicious users, in the presence of…

信息论 · 计算机科学 2013-06-11 Giovanni Geraci , Sarabjot Singh , Jeffrey G. Andrews , Jinhong Yuan , Iain B. Collings

In this work we study encoding/decoding schemes for the transmission of a discrete time analog Gaussian source over a Gaussian wiretap channel. The intended receiver is assumed to have a certain minimum signal to noise ratio (SNR) and the…

信息论 · 计算机科学 2009-08-18 Makesh Pravin Wilson , Krishna Narayanan

We consider networks of noisy degraded wiretap channels in the presence of an eavesdropper. For the case where the eavesdropper can wiretap at most one channel at a time, we show that the secrecy capacity region, for a broad class of…

信息论 · 计算机科学 2012-11-20 Theodoros K. Dikaliotis , Hongyi Yao , Tracey Ho , Michelle Effros , Joerg Kliewer

In this paper, we study robust beamforming design for near-field physical-layer-security (PLS) systems, where a base station (BS) equipped with an extremely large-scale array (XL-array) serves multiple near-field legitimate users (Bobs) in…

信号处理 · 电气工程与系统科学 2026-01-21 Chao Zhou , Changsheng You , Cong Zhou , Chengwen Xing , Jianhua Zhang

In this paper, a cognitive relay channel is considered, and amplify-and-forward (AF) relay beamforming designs in the presence of an eavesdropper and a primary user are studied. Our objective is to optimize the performance of the cognitive…

信息论 · 计算机科学 2010-10-01 Junwei Zhang , Mustafa Cenk Gursoy

A secure downlink transmission system which is exposed to multiple eavesdroppers and is appropriate for Internet of Things (IoT) applications is considered. A worst case scenario is assumed, in the sense that, in order to enhance their…

信号处理 · 电气工程与系统科学 2019-05-17 Pingmu Huang , Yunqin Hao , Tiejun Lv , Jintao Xing , Jie Yang , P. Takis Mathiopoulos

Information leakage in Wyner's wiretap channel model is usually defined as the mutual information between the secret message and the eavesdropper's received signal. We define a new quantity called "conditional information leakage given the…

信息论 · 计算机科学 2019-01-28 Yutaka Jitsumatsu , Ukyo Michiwaki , Yasutada Oohama

We study physical-layer security in wireless ad hoc networks and investigate two types of multi-antenna transmission schemes for providing secrecy enhancements. To establish secure transmission against malicious eavesdroppers, we consider…

信息论 · 计算机科学 2016-11-15 Xi Zhang , Xiangyun Zhou , Matthew R. McKay

In this paper, we consider the transmission of confidential messages over slow fading wireless channels in the presence of an eavesdropper. We propose a transmission scheme that employs a single reconfigurable antenna at each of the…

信息论 · 计算机科学 2014-02-06 Ahmed M. Alaa

The classic MIMO wiretap channel comprises a passive eavesdropper that attempts to intercept communications between an authorized transmitter-receiver pair, each node being equipped with multiple antennas. In a dynamic network, it is…

信息论 · 计算机科学 2013-08-13 Amitav Mukherjee , A. Lee Swindlehurst

Secure communication over a wiretap channel is considered in the disadvantaged wireless environment, where the eavesdropper channel is (possibly much) better than the main channel. We present a method to exploit inherent vulnerabilities of…

密码学与安全 · 计算机科学 2016-05-12 Azadeh Sheikholeslami , Dennis Goeckel , Hossein Pishro-Nik

This paper considers secure energy-efficient routing in the presence of multiple passive eavesdroppers. Previous work in this area has considered secure routing assuming probabilistic or exact knowledge of the location and…

网络与互联网体系结构 · 计算机科学 2017-03-16 Azadeh Sheikholeslami , Majid Ghaderi , Hossein Pishro-Nik , Dennis Goeckel

In this paper, we study beamforming in decode-and-forward (DF) relaying using multiple relays, where the source node sends a secret message as well as a non-secret message to the destination node in the presence of multiple non-colluding…

信息论 · 计算机科学 2014-02-03 Sanjay Vishwakarma , A. Chockalingam

We propose covert beamforming design frameworks for integrated radar sensing and communication (IRSC) systems, where the radar can covertly communicate with legitimate users under the cover of the probing waveforms without being detected by…

信息论 · 计算机科学 2022-08-12 Shuai Ma , Haihong Sheng , Ruixin Yang , Hang Li , Youlong Wu , Chao Shen , Naofal Al-Dhahir , Shiyin Li

Next-generation communication networks will likely involve the energy-efficient transfer of information and energy over the same wireless channel, for which the physical layer will become more vulnerable to cyber attacks by potential…

信息论 · 计算机科学 2017-07-12 Ali A. Nasir , Hoang D. Tuan , Trung Q. Duong , H. Vincent Poor

This paper investigates secure communications in a near-field multi-functional integrated sensing, communication, and powering (ISCAP) system with an extremely large-scale antenna arrays (ELAA) equipped at the base station (BS). In this…

信号处理 · 电气工程与系统科学 2024-05-24 Zixiang Ren , Siyao Zhang , Xinmin Li , Ling Qiu , Jie Xu , Derrick Wing Kwan Ng