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In physical layer security, the channel state information (CSI) of passive eavesdroppers is usually difficult to obtain, which has motivated sensing-aided secure communication (SASC). However, in secure multicast scenarios, conventional…

Information Theory · Computer Science 2026-05-12 Zequan Wang , Liang Yin , Hao Xu , Yunan Sun , Yitong Liu , Hongwen Yang

This paper addresses the design of a dedicated homophonic coding for a class of communication systems which, in order to provide both reliability and security, first encode the data before encrypting it, which is referred to as the…

Cryptography and Security · Computer Science 2015-03-17 Miodrag J. Mihaljevic , Frederique Oggier , Hideki Imai

This paper considers a cooperative jamming (CJ)-aided secure wireless communication system. Conventionally, the jammer transmits Gaussian noise (GN) to enhance security; however, the GN scheme also degrades the legitimate receiver's…

Information Theory · Computer Science 2025-10-08 Hao Yang , Hao Xu , Kai Wan , Sijie Zhao , Robert Caiming Qiu

In multi-cast scenario, all desired users are divided into $K$ groups. Each group receives its own individual confidential message stream. Eavesdropper group aims to intercept $K$ confidential-message streams. To achieve a secure…

Information Theory · Computer Science 2017-12-29 Feng Shu , Ling Xu , Jiangzhou Wang , Wei Zhu , Zhou Xiaobo

Non-orthogonal multiple access (NOMA) is an efficient approach that can improve spectrum utilization and support massive connectivity for next-generation wireless networks. However, over a wireless channel, the superimposed NOMA signals are…

Information Theory · Computer Science 2020-10-26 Lu Lv , Hai Jiang , Zhiguo Ding , Qiang Ye , Naofal Al-Dhahir , Jian Chen

Secure communication is a promising technology for wireless networks because it ensures secure transmission of information. In this paper, we investigate the joint subcarrier (SC) assignment and power allocation problem for non-orthogonal…

Information Theory · Computer Science 2018-01-16 Haijun Zhang , Ning Yang , Keping Long , Miao Pan , George K. Karagiannidis , Victor C. M. Leung

A downlink single-input single-output non-orthogonal multiple access setting is considered, in which a base station (BS) is communicating with two legitimate users in two possible scenarios of unsecure environments: existence of an external…

Information Theory · Computer Science 2019-05-13 Ahmed Arafa , Wonjae Shin , Mojtaba Vaezi , H. Vincent Poor

Under the emerging network coding paradigm, intermediate nodes in the network are allowed not only to store and forward packets but also to process and mix different data flows. We propose a low-complexity cryptographic scheme that exploits…

Cryptography and Security · Computer Science 2016-11-17 Joao P. Vilela , Luisa Lima , Joao Barros

Wireless networks that are decentralized and communicate without using existing infrastructure are known as mobile ad-hoc networks. The most common sorts of threats and attacks can affect MANETs. Therefore, it is advised to utilize…

Networking and Internet Architecture · Computer Science 2023-04-24 S. M. Udhaya Sankar , D. Dhinakaran , C. Cathrin Deboral , M. Ramakrishnan

This paper characterizes the secret message capacity of three networks where two unicast sessions share some of the communication resources. Each network consists of erasure channels with state feedback. A passive eavesdropper is assumed to…

Information Theory · Computer Science 2018-10-16 Gaurav Kumar Agarwal , Martina Cardone , Christina Fragouli

This paper considers a cyber-physical system under an active eavesdropping attack. A remote legitimate user estimates the state of a linear plant from the state information received from a sensor. Transmissions from the sensor occur via an…

Systems and Control · Electrical Eng. & Systems 2023-08-21 Matthew Crimson , Justin M. Kennedy , Daniel E. Quevedo

Data sent over the Internet can be monitored and manipulated by intermediate entities in the data path from the source to the destination. For unencrypted communications (and some encrypted communications with known weaknesses),…

Cryptography and Security · Computer Science 2019-06-27 Peter Mell , Assane Gueye , Christopher Schanzle

As the demand for underwater communication continues to grow, underwater acoustic RIS (UARIS), as an emerging paradigm in underwater acoustic communication (UAC), can significantly improve the communication rate of underwater acoustic…

Signal Processing · Electrical Eng. & Systems 2024-12-03 Ziqi Chen , Jun Du , Chunxiao Jiang , Zhu Han

Bidirectional relaying, where a relay helps two user nodes to exchange equal length binary messages, has been an active area of recent research. A popular strategy involves a modified Gaussian MAC, where the relay decodes the XOR of the two…

Information Theory · Computer Science 2012-06-19 Navin Kashyap , V. Shashank , Andrew Thangaraj

This paper considers the problem of securing a linear network coding system against an adversary that is both an eavesdropper and a jammer. The network is assumed to transport n packets from source to each receiver, and the adversary is…

Information Theory · Computer Science 2016-11-17 Danilo Silva , Frank R. Kschischang

As a subfield of network coding, physical-layer network coding (PNC) can effectively enhance the throughput of wireless networks by mapping superimposed signals at receiver to other forms of user messages. Over the past twenty years, PNC…

Signal Processing · Electrical Eng. & Systems 2019-07-25 Pingping Chen , Zhaopeng Xie , Yi Fang , Zhifeng Chen , Shahid Mumtaz , Joel J. P. C. Rodrigues

Spectrum leasing via cooperation refers to the possibility of primary users leasing a portion of the spectral resources to secondary users in exchange for cooperation. In the presence of an eavesdropper, this correspondence proposes a novel…

Information Theory · Computer Science 2012-05-02 Keonkook Lee , Chan-Byoung Chae , Joonhyuk Kang

This paper investigates the downlink (DL) physical layer security (PLS) in a near-field (NF) extra-large multiple-input multiple-output MIMO (XL-MIMO) system. To enhance the secrecy rate (SR), null-space artificial noise (AN) is transmitted…

Information Theory · Computer Science 2025-03-19 Xiangjun Ma , Ali Arshad Nasir , Daniel Benevides da Costa

This work, for the first time, considers confidential data collection in the context of unmanned aerial vehicle (UAV) wireless networks, where the scheduled ground sensor node (SN) intends to transmit confidential information to the UAV…

Signal Processing · Electrical Eng. & Systems 2020-01-06 Xiaobo Zhou , Shihao Yan , Min Li , Jun Li , Feng Shu

A deep reinforcement learning approach is applied, for the first time, to solve the routing, modulation, spectrum and core allocation (RMSCA) problem in dynamic multicore fiber elastic optical networks (MCF-EONs). To do so, a new…