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Millimeter wave (mmWave) communication is expected to play an important role in next generation cellular networks, aiming to cope with the bandwidth shortage affecting conventional wireless carriers. Using side-information has been proposed…

信号处理 · 电气工程与系统科学 2017-11-09 Flavio Maschietti , David Gesbert , Paul de Kerret

Unmanned Aerial Vehicles (UAVs) are being used for wireless communications in smart environments. However, the need for mobility, scalability of data transmission over wide areas, and the required coverage area make UAV beamforming…

信号处理 · 电气工程与系统科学 2023-07-17 Abdu Saif , Nor Shahida Mohd Shah , Soreen Ameen Fattah , Saeed Hamood Alsamhi , Santosh Kumar , Ali Saad Al khuraib

Unmanned aerial vehicles (UAVs)-enabled aerial communication provides a flexible, reliable, and cost-effective solution for a range of wireless applications. However, due to the high line-of-sight (LoS) probability, aerial communications…

网络与互联网体系结构 · 计算机科学 2024-04-12 Jiahui Li , Geng Sun , Qingqing Wu , Shuang Liang , Pengfei Wang , Dusit Niyato

In this paper, we study power allocation for secure communication in a multiuser multiple-input single-output (MISO) downlink system with simultaneous wireless information and power transfer. The receivers are able to harvest energy from…

信息论 · 计算机科学 2013-07-30 Derrick Wing Kwan Ng , Lin Xiang , Robert Schober

The broadcast characteristics of sixth-generation (6G) low-earth orbit (LEO) satellite communications raise serious security issues. Movable antenna (MA) technology offers a promising physical layer security (PLS) solution by flexibly…

信息论 · 计算机科学 2026-05-19 Suhong Luo , Pan Tang , Jianhua Zhang , Ji Wang , Yixuan Li , Zihang Ding , Xingwang Li

This paper considers multiple-input multiple-output (MIMO) full-duplex (FD) two-way secrecy systems. Specifically, both multi-antenna FD legitimate nodes exchange their own confidential message in the presence of an eavesdropper. Taking…

信息论 · 计算机科学 2017-05-18 Zheng Chu , Tuan Anh Le , Huan X. Nguyen , Arumugam Nallanathan , Mehmet Karamanoglu

Designing an efficient scheme in physical layer enables cognitive radio (CR) users to efficiently utilize resources dedicated to primary users (PUs). In this paper in order to maximize the SU's throughput, the SU's transceivers beamforming…

信息论 · 计算机科学 2012-06-26 Adnan Gavili , Masoumeh Nasiri Kenari

This paper examines the secrecy performance of millimeter-wave (mm-Wave) communications with imperfect hardware and uncertain eavesdropper location. We consider a multiple-antenna source communicating with a single-antenna destination using…

信息论 · 计算机科学 2021-01-07 Saeed Mashdour , Majid Moradikia , Phee Lep Yeoh

In this paper, we consider the secure transmission design for a multiple-input single-output Femtocell overlaid with a Macrocell in co-channel deployment. The Femtocell base station sends confidential messages to information receiving…

信息论 · 计算机科学 2018-07-02 Hui Ma , Julian Cheng , Xianfu Wang

Location-Based Services (LBSs) provide invaluable aid in the everyday activities of many individuals, however they also pose serious threats to the user' privacy. There is, therefore, a growing interest in the development of mechanisms to…

密码学与安全 · 计算机科学 2017-10-17 Konstantinos Chatzikokolakis , Serge Haddad , Ali Kassem , Catuscia Palamidessi

Location-Based Services (LBSs) provide valuable services, with convenient features for mobile users. However, the location and other information disclosed through each query to the LBS erodes user privacy. This is a concern especially…

密码学与安全 · 计算机科学 2020-01-23 Hongyu Jin , Panos Papadimitratos

In this paper, we consider how the uplink transmission of a spatially correlated massive multiple-input multiple-output (MIMO) system can be protected from a jamming attack. To suppress the jamming, we propose a novel framework including a…

信息论 · 计算机科学 2020-03-02 Hossein Akhlaghpasand , Emil Björnson , S. Mohammad Razavizadeh

High-mobility adaption and massive Multiple-input Multiple-output (MIMO) application are two primary evolving objectives for the next generation high speed train (HST) wireless communication system. In this paper, we consider how to design…

信息论 · 计算机科学 2017-04-12 Xuhong Chen , Jiaxun Lu , Tao Li , Pingyi Fan , Khaled Ben Letaief

Beam alignment (BA) is a crucial process in millimeter-wave (mmWave) communications, enabling precise directional transmission and efficient link establishment. However, due to characteristics like omnidirectional exposure and the broadcast…

密码学与安全 · 计算机科学 2025-07-15 Yulin Teng , Keshuang Han , Pinchang Zhang , Xiaohong Jiang , Yulong Shen , Fu Xiao

We conduct a comprehensive evaluation of the performance of the uplink of OFDMA-based MU-MIMO systems with multi-antenna users, for three Zero-Forcing (ZF) Beamforming (BF) strategies: Coordinated-Transmit-Receive-1 (CTR1), where only the…

网络与互联网体系结构 · 计算机科学 2025-09-30 João Paulo P. G. Marques , Catherine Rosenberg

In this paper we consider the robust secure beamformer design for MISO wiretap channels. Assume that the eavesdroppers' channels are only partially available at the transmitter, we seek to maximize the secrecy rate under the transmit power…

信息论 · 计算机科学 2013-10-29 Shuai Ma , Mingyi Hong , Enbin Song , Xiangfeng Wang , Dechun Sun

Contrast-Enhanced Ultra-Sound (CEUS) has become a viable method for non-invasive, dynamic visualization in medical diagnostics, yet Ultrasound Localization Microscopy (ULM) has enabled a revolutionary breakthrough by offering ten times…

计算机视觉与模式识别 · 计算机科学 2023-07-19 Christopher Hahne , Raphael Sznitman

The localization of directional RF emitters presents significant challenges for electronic warfare applications. Traditional localization methods, designed for omnidirectional emitters, experience degraded performance when applied to…

信号处理 · 电气工程与系统科学 2025-10-30 Fraser Williams , Akila Pemasiri , Dhammika Jayalath , Terry Martin , Clinton Fookes

The performance of millimeter wave (mmWave) communications strongly relies on accurate beamforming both at base station and user terminal sides, referred to as beam alignment (BA). Existing BA algorithms provide initial yet coarse angle…

信息论 · 计算机科学 2021-09-22 Fernando Pedraza , Mari Kobayashi , Giuseppe Caire

In reconfigurable intelligent surface (RIS) aided millimeter-wave (mmWave) communication systems, in order to overcome the limitation of the conventional channel state information (CSI) acquisition techniques, this paper proposes a location…

信息论 · 计算机科学 2024-10-28 Zhe Xing , Rui Wang , Xiaojun Yuan , Jun Wu
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