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We consider the secure transmission of information over an ergodic fading channel in the presence of an eavesdropper. Our eavesdropper can be viewed as the wireless counterpart of Wyner's wiretapper. The secrecy capacity of such a system is…

信息论 · 计算机科学 2007-07-16 Praveen Kumar Gopala , Lifeng Lai , Hesham El Gamal

We present two quantum information splitting schemes using respectively tripartite GHZ and asymmetric W states as quantum channels. We show that, if the secret state is chosen from a special ensemble and known to the sender (Alice), then…

量子物理 · 物理学 2008-12-23 Zhan-jun Zhang , Chi-Yee Cheung

This paper develops a new physical layer framework for secure two-way wireless communication in the presence of a passive eavesdropper, i.e., Eve. Our approach achieves perfect information theoretic secrecy via a novel randomized scheduling…

信息论 · 计算机科学 2009-08-27 Aly El Gamal , Moustafa Youssef , Hesham El Gamal

Consider a distributed computing system in which the worker nodes are connected over a shared wireless channel. Nodes can store a fraction of the data set over which computation needs to be carried out, and a Map-Shuffle-Reduce protocol is…

信息论 · 计算机科学 2018-10-29 Sukjong Ha , Jingjing Zhang , Osvaldo Simeone , Joonhyuk Kang

This paper delves into the time-efficient covert multicast in a wireless communication system facilitated by Unmanned Aerial Vehicle (UAV), in which the UAV aims to disseminate a common covert information to multiple ground users (GUs)…

密码学与安全 · 计算机科学 2024-10-17 Wenhao Zhang , Ji He , Yuanyu Zhang

We present a controlled quantum teleportation protocol. In the protocol, quantum information of an unknown state of a 2-level particle is faithfully transmitted from a sender (Alice) to a remote receiver (Bob) via an initially shared…

量子物理 · 物理学 2009-11-10 T Gao , F L Yan , Z X Wang

We consider a scenario in which $K$ transmitters attempt to communicate covert messages reliably to a legitimate receiver over a discrete memoryless MAC while simultaneously escaping detection from an adversary who observes their…

信息论 · 计算机科学 2019-06-11 Keerthi Suria Kumar Arumugam , Matthieu R. Bloch

Co-Channel Interference (CCI) is a fundamental problem in wireless communication networks. It is a well-studied problem in the field. As channels use the same frequency, interference in the radio waves occurs which, in turn, reduces the…

信号处理 · 电气工程与系统科学 2025-01-29 Tzalik Maimon , Shirley Alus , Gil Kedar

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

This paper studies a memoryless state-dependent multiple access channel (MAC) where two transmitters wish to convey a message to a receiver under the assumption of causal and imperfect channel state information at transmitters (CSIT) and…

信息论 · 计算机科学 2021-06-18 Lorenzo Miretti , Mari Kobayashi , David Gesbert , Paul de Kerret

Considering a multi-user interference network with an eavesdropper, this paper aims at the power allocation to optimize the worst secrecy throughput among the network links or the secure energy efficiency in terms of achieved secrecy…

信息论 · 计算机科学 2017-08-25 Zhichao Sheng , Hoang Duong Tuan , Ali Arshad Nasir , Trung Q. Duong , H. Vincent Poor

Wireless short-packet communications pose challenges to the security and reliability of the transmission. Besides, the proactive warder compounds these challenges, who detects and interferes with the potential transmission. An extra jamming…

信息论 · 计算机科学 2023-08-07 Manlin Wang , Yao Yao , Bin Xia , Zhiyong Chen , Jiangzhou Wang

In wiretap channels the eavesdropper's channel state information (CSI) is commonly assumed to be known at transmitter, fully or partially. However, under perfect secrecy constraint the eavesdropper may not be motivated to feedback any…

信息论 · 计算机科学 2013-07-10 Pin-Hsun Lin , Chien-Li Su , Hsuan-Jung Su

We consider a source (Alice) trying to communicate with a destination (Bob), in a way that an unauthorized node (Eve) cannot infer, based on her observations, the information that is being transmitted. The communication is assisted by…

In this work we study the problem of communication over the quantum wiretap channel. For this channel there are three parties Alice (sender), Bob (legitimate receiver) and Eve (eavesdropper). We obtain upper and lower bounds on the amount…

量子物理 · 物理学 2017-03-07 Jaikumar Radhakrishnan , Pranab Sen , Naqueeb Ahmad Warsi

This paper investigates power splitting for full-duplex relay networks with wireless information and energy transfer. By applying power splitting as a relay transceiver architecture, the full duplex information relaying can be powered by…

信息论 · 计算机科学 2015-04-21 Hongwu Liu , Kyeong Jin Kim , Kyung Sup Kwak

In this letter, improving the security of an intelligent reflecting surface (IRS) assisted multiple-input single-output (MISO) communication system is studied. Different from the ideal assumption in existing literatures that full…

信息论 · 计算机科学 2020-08-26 Hui-Ming Wang , Jiale Bai , Limeng Dong

This letter proposes a novel hybrid half-/full-duplex relaying scheme to enhance the relay channel security. A source node (Alice) communicates with her destination node (Bob) in the presence of a buffer-aided full-duplex relay node…

网络与互联网体系结构 · 计算机科学 2016-12-20 Ahmed El Shafie , Ahmed Sultan , Naofal Al-Dhahir

We consider the problem of adaptive modulation for wideband DS-CDMA Rayleigh fading channels with imperfect channel state information (CSI). We assume a multidimensional signal subspace spanned by a collection of random spreading codes…

信息论 · 计算机科学 2007-07-13 Richard J. Barton

This work considers the two-way wiretap channel in which two legitimate users, Alice and Bob, wish to exchange messages securely in the presence of a passive eavesdropper Eve. In the full-duplex scenario, where each node can transmit and…

信息论 · 计算机科学 2011-10-04 Aly El Gamal , O. Ozan Koyluoglu , Moustafa Youssef , Hesham El Gamal