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Reconfigurable intelligent surfaces (RISs) have recently received widespread attention in the field of wireless communication. An RIS can be controlled to reflect incident waves from the transmitter towards the receiver; a feature that is…

信息论 · 计算机科学 2021-09-15 Jiangfeng Hu , Haifan Yin , Emil Björnson

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…

信息论 · 计算机科学 2016-11-15 Ashish Khisti , Gregory Wornell

Millimeter-wave wireless networks offer high throughput and can (ideally) prevent eavesdropping attacks using narrow, directional beams. Unfortunately, imperfections in physical hardware mean today's antenna arrays all exhibit side lobes,…

密码学与安全 · 计算机科学 2018-10-25 Yanzi Zhu , Ying Ju , Bolun Wang , Jenna Cryan , Ben Y. Zhao , Haitao Zheng

This paper presents a tutorial for network multiple-input and multiple-output (netMIMO) in wireless local area networks (WLAN). Wireless traffic demand is growing exponentially. NetMIMO allows access points (APs) in a WLAN to cooperate in…

网络与互联网体系结构 · 计算机科学 2014-05-06 Hong Huang , Hajar Barani , Hussein Al-Azzawi

This paper considers the security issue of the fifth-generation (5G) wireless networks with massive connections, where multiple eavesdroppers aim to intercept the confidential messages through active eavesdropping. To realize secure massive…

信息论 · 计算机科学 2018-02-23 Xiaoming Chen , Zhaoyang Zhang , Caijung Zhong , Derrick Wing Kwan Ng , Rundong Jia

This paper considers max-min fairness for wireless energy transfer in a downlink multiuser communication system. Our resource allocation design maximizes the minimum harvested energy among multiple multiple-antenna energy harvesting…

信息论 · 计算机科学 2014-04-08 Derrick Wing Kwan Ng , Robert Schober

In this paper, we investigate the impact of phase noise on the secrecy performance of downlink massive MIMO systems in the presence of a passive multiple-antenna eavesdropper. Thereby, for the base station (BS) and the legitimate users, the…

信息论 · 计算机科学 2016-11-17 Jun Zhu , Robert Schober , Vijay K. Bhargava

In this paper, we investigate the design of artificial-noise-aided secure multi-antenna transmission in slow fading channels. The primary design concerns include the transmit power allocation and the rate parameters of the wiretap code. We…

信息论 · 计算机科学 2016-11-17 Xi Zhang , Xiangyun Zhou , Matthew R. McKay

Non-Orthogonal Multiple Access (NOMA) is a multiplexing technique for future wireless, which when combined with Multiple-Input Multiple-Output (MIMO) unlocks higher capacities for systems where users have varying channel strength. NOMA…

信息论 · 计算机科学 2021-07-09 Jennifer Chakravarty , Oliver Johnson , Robert Piechocki

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

Conventional wireless security assumes wireless communications are rightful and aims to protect them against malicious eavesdropping and jamming attacks. However, emerging infrastructure-free mobile communication networks are likely to be…

信息论 · 计算机科学 2016-12-26 Jie Xu , Lingjie Duan , Rui Zhang

Security and energy efficiency have become crucial features in the modern-era wireless communication. In this paper, we consider an energy-efficient design for intelligent reflecting surface (IRS)-assisted multiple-input multiple-output…

信号处理 · 电气工程与系统科学 2022-09-02 Anshu Mukherjee , Vaibhav Kumar , Derrick Wing Kwan Ng , Le-Nam Tran

The emerging Internet of Things (IoT) and bidirectional communications in smart grid are expected to improve smart grid capabilities and electricity management. Because of massive number of IoT devices in smart grid, size of the data to be…

信号处理 · 电气工程与系统科学 2021-08-13 Neji Mensi , Danda B. Rawat , Elyes Balti

In this paper, we study the degraded compound multi-receiver wiretap channel. The degraded compound multi-receiver wiretap channel consists of two groups of users and a group of eavesdroppers, where, if we pick an arbitrary user from each…

信息论 · 计算机科学 2009-10-19 Ersen Ekrem , Sennur Ulukus

A scenario in which a single source communicates with a single destination via a distributed MIMO transceiver is considered. The source operates each of the transmit antennas via finite-capacity links, and likewise the destination is…

信息论 · 计算机科学 2016-11-17 Osvaldo Simeone , Oren Somekh , H. Vincent Poor , Shlomo Shamai

We consider the problem of secure communication with multi-antenna transmission in fading channels. The transmitter simultaneously transmits an information bearing signal to the intended receiver and artificial noise to the eavesdroppers.…

信息论 · 计算机科学 2010-07-01 Xiangyun Zhou , Matthew R. McKay

This paper considers three aspects of Massive MIMO (multiple-input multiple-output) communication networks that have received little attention in previous works, but are important to understand when designing and implementing this promising…

信息论 · 计算机科学 2015-09-23 Emil Björnson , Erik G. Larsson

In this paper, throughput and energy efficiency of cognitive multiple-input multiple-output (MIMO) systems operating under quality-of-service (QoS) constraints, interference limitations, and imperfect channel sensing, are studied. It is…

信息论 · 计算机科学 2013-08-22 Sami Akin , Mustafa Cenk Gursoy

This work studies secure transmission in intelligent reflecting surfaces (IRS)-assisted MIMO systems when an active eavesdropper is available in the network. We consider a scenario in which the eavesdropper performs an active pilot attack…

信息论 · 计算机科学 2020-10-19 Ali Bereyhi , Saba Asaad , Ralf R. Müller , Rafael F. Schaefer , H. Vincent Poor

To support the high data rates for latency-critical applications, future wireless systems will employ fully digital beamforming multiple-input multiple-output (MIMO) architectures at millimeter wave (mmWave) frequencies. Moreover, mmWave…

信号处理 · 电气工程与系统科学 2026-04-06 Faruk Pasic , Mariam Mussbah , Stefan Schwarz , Markus Rupp , Christoph F. Mecklenbräuker