59 Hits in 6.9 sec

Stemming Downlink Leakage from Training Sequences in Multi-User MIMO Networks

Yunlong Mao, Yuan Zhang, Sheng Zhong
2016 Proceedings of the 2016 ACM SIGSAC Conference on Computer and Communications Security - CCS'16  
Results show that our secure CSI estimation scheme is highly effective in preventing downlink leakage against malicious users.  ...  Recently a serious eavesdropping attack, which exploits the CSI feedback of the FDD system, is discovered in MU-MIMO networks.  ...  And this is an application of Multi-User MIMO (MU-MIMO) scenario. With advantage of improving the speed and capacity of networks, MU-MIMO has been standardized in IEEE 802.11ac [25] .  ... 
doi:10.1145/2976749.2978412 dblp:conf/ccs/MaoZZ16 fatcat:qt5shmty4vfhhisvcyfnkfeifu

Overcoming the Channel Estimation Barrier in Massive MIMO Communication Systems [article]

Zhenyu Liu, Lin Zhang, Zhi Ding
2019 arXiv   pre-print
This article discusses the application of deep learning (DL) for massive MIMO channel estimation in wireless networks by integrating the underlying characteristics of channels in future high-speed cellular  ...  Massive multiple-input multiple-output (MIMO) is one of the critical underlying technologies that allow future wireless networks to meet these service needs.  ...  Another key challenge of CSI estimation in massive MIMO systems is pilot contamination, which stems from interference of pilot symbols utilized by the users in neighboring cells.  ... 
arXiv:1912.10573v1 fatcat:w2dn4os3yngjjkrzx66utzacga

A Generalized Framework on Beamformer Design and CSI Acquisition for Single-Carrier Massive MIMO Systems in Millimeter Wave Channels [article]

Gokhan M. Guvensen, Ender Ayanoglu
2016 arXiv   pre-print
MIMO systems employing single-carrier (SC) modulation in time division duplex (TDD) mode by exploiting the joint angle-delay domain channel sparsity in millimeter (mm) wave frequencies.  ...  is derived for spatially correlated wideband MIMO channels.  ...  Instantaneous channel state information (CSI) at BS is essential for massive MIMO transmission, since multi-user precoding at downlink or multi-user decoding at uplink necessitates accurate CSI in order  ... 
arXiv:1607.01436v1 fatcat:t36geyzukjgajh2koo643s5llq

Intelligent D-Band wireless systems and networks initial designs

Marco Di Renzo, Xuewen Qian, Halid Hrasnica, Nikos Katzouris, Kyriakos Manganaris, Dimitris Selimis, Fotis Lazarakis, Tachporn Sanguanpuak, Heikki Halmetoja, Moamen Ibrahim, Edwin Yaqub, Rachana Desai (+5 others)
2021 Zenodo  
In short, the D4.2 provides results on promising AI and ML based methods along with their limitations and potentials that have been investigated in the ARIADNE project.  ...  This deliverable gives the results of the ARIADNE project's Task 4.2: Machine Learning based network intelligence.  ...  Similarly, in [134] , the authors reported a deep learning compressed sensing (DLCS) algorithm for channel estimation scheme in multi-user (MU) massive MIMO sub-THz systems.  ... 
doi:10.5281/zenodo.5718378 fatcat:l3rkacgotzazha564nqm6wchiy

Rate-Splitting Multiple Access: Fundamentals, Survey, and Future Research Trends [article]

Yijie Mao, Onur Dizdar, Bruno Clerckx, Robert Schober, Petar Popovski, H. Vincent Poor
2022 arXiv   pre-print
a wide range of network loads (including both underloaded and overloaded regimes) and user channel conditions.  ...  Through information and communication theoretic analysis, RSMA has been shown to be optimal (from a Degrees-of-Freedom region perspective) in several transmission scenarios.  ...  As the multi-user interference at one user stems from the message of the other user, such a process can be interpreted as partially decoding the interference.  ... 
arXiv:2201.03192v1 fatcat:e6vlcpge3jdexcqp7e6ctz4xjq

Principles of Physical Layer Security in Multiuser Wireless Networks: A Survey

Amitav Mukherjee, S. Ali A. Fakoorian, Jing Huang, A. Lee Swindlehurst
2014 IEEE Communications Surveys and Tutorials  
This paper provides a comprehensive review of the domain of physical layer security in multiuser wireless networks.  ...  , and relay networks.  ...  User selection in downlink channels with external eavesdroppers was studied in [102] - [107] .  ... 
doi:10.1109/surv.2014.012314.00178 fatcat:cmqxgwotmvbmldwqdvjkzsweam

Adaptive limited feedback for MISO wiretap channels with cooperative jamming

Minyan Pei, Dongtang Ma, Jibo Wei
2013 2013 IEEE 14th Workshop on Signal Processing Advances in Wireless Communications (SPAWC)  
This paper provides a comprehensive review of the domain of physical layer security in multiuser wireless networks.  ...  , and relay networks.  ...  User selection in downlink channels with external eavesdroppers was studied in [102] - [107] .  ... 
doi:10.1109/spawc.2013.6612057 dblp:conf/spawc/PeiMW13 fatcat:gjn4o2l4qjae5ipsr6zfjo35yu

Downlink Secrecy Rate of One-Bit Massive MIMO System with Active Eavesdropping

M. A. Teeti
2020 IEEE Access  
In this study, we consider the physical layer security in the downlink of a Massive MIMO system employing one-bit quantization at the base station (BS).  ...  long as the transmit power of eavesdropper is less than that of the legitimate user during channel training.  ...  It is well-known that the promising gains of Massive MIMO systems [24] - [27] are affected by pilot contamination [28] , [29] , whether resulting from pilot reuse [28] in multi-cellular networks  ... 
doi:10.1109/access.2020.2975540 fatcat:nnnw3uyvhrg4fatepbxq6gt5oi

Simultaneous Wireless Information and Power Transfer (SWIPT): Recent Advances and Future Challenges

Tharindu D. Ponnimbaduge Perera, Dushantha Nalin K. Jayakody, Shree Krishna Sharma, Symeon Chatzinotas, Jun Li
2018 IEEE Communications Surveys and Tutorials  
Within communication networks, the distance from the base station to the device is a critical factor in both information and power transfer.  ...  WPT is one of the EH technologies that overcome the aforementioned limitations [8] , where the nodes in the communications network charge their inbuilt batteries from electromagnetic radiation.  ...  Additionally, residual Self-Interference (SI) in multi-user MIMO channels has been studied in [85] . D.  ... 
doi:10.1109/comst.2017.2783901 fatcat:iw2mg5se4bhzpcqgcdd5dfgaoi

Wireless AI: Enabling an AI-Governed Data Life Cycle [article]

Dinh C. Nguyen, Peng Cheng, Ming Ding, David Lopez-Perez, Pubudu N. Pathirana, Jun Li, Aruna Seneviratne, Yonghui Li, H. Vincent Poor
2020 arXiv   pre-print
Specifically, we first propose a novel Wireless AI architecture that covers five key data-driven AI themes in wireless networks, including Sensing AI, Network Device AI, Access AI, User Device AI and Data-provenance  ...  To this end, we present a comprehensive survey of the latest studies in wireless AI from the data-driven perspective.  ...  In current frequency division duplexity (FDD) MIMO systems (e.g., long-term evolution Release-8), the downlink CSI is acquired at the user equipment (UE) during the training period and returns to the BS  ... 
arXiv:2003.00866v1 fatcat:dofctwtag5ewhhzaseeukhtxbe

Modeling and Analysis of Energy Harvesting and Smart Grid-Powered Wireless Communication Networks: A Contemporary Survey [article]

Shuyan Hu, Xiaojing Chen, Wei Ni, Xin Wang, Ekram Hossain
2019 arXiv   pre-print
The advancements in smart power grid and the advocation of "green communications" have inspired the wireless communication networks to harness energy from ambient environments and operate in an energy-efficient  ...  We embark on constrained operation and optimization of different energy harvesting wireless systems, such as point-to-point, multipoint-to-point, multipoint-to-multipoint, multi-hop, and multi-cell systems  ...  It is proven in [229] - [231] that integrating SWIPT not only facilitates cooperation among users, but also alleviates the level of self-interference stemming from signal leakage from the output to  ... 
arXiv:1912.13203v1 fatcat:rhnrbxe5wbd3banrfksuxq4oyy

Optimization-driven Machine Learning for Intelligent Reflecting Surfaces Assisted Wireless Networks [article]

Shimin Gong, Jiaye Lin, Jinbei Zhang, Dusit Niyato, Dong In Kim, Mohsen Guizani
2020 arXiv   pre-print
Practical challenges still remain mainly due to the demand for a large dataset in offline training and slow convergence in online learning.  ...  In this article, we focus on machine learning (ML) approaches for performance maximization in IRS-assisted wireless networks.  ...  IRS-Assisted MISO System with Channel Uncertainties We consider a generic IRS-assisted multi-input single-output (MISO) downlink system, where the information transmissions from a multi-antenna access  ... 
arXiv:2008.12938v1 fatcat:ysrvjwwgufe4za46ryr3vhpisa

Technical Program

2021 2020 IEEE Information Theory Workshop (ITW)  
It is shown here to be effective also in assisting the encoder: it achieves the helper capacity on the single-user Gaussian channel, on the multiple-access Gaussian channel, on the Exponential channel,  ...  Similarly to the inherent secrecy nature of the classical SK scheme, we show that the proposed scheme is also secure by itself, which indicates that the feedback secrecy capacity of the two-user Gaussian  ...  Decoding sequences that stem from multiple transmissions of a codeword over an insertion, deletion, and substitution channel is a critical component of efficient deoxyribonucleic acid (DNA) data storage  ... 
doi:10.1109/itw46852.2021.9457668 fatcat:j425ygeajrbd5esztbe5zgygty

A Survey of Optimization Approaches for Wireless Physical Layer Security [article]

Dong Wang, Bo Bai, Wenbo Zhao, Zhu Han
2019 arXiv   pre-print
Due to the malicious attacks in wireless networks, physical layer security has attracted increasing concerns from both academia and industry.  ...  Because of its importance in security designs, the latter research direction is surveyed in a comprehensive way in this paper.  ...  In the downlink, the transmitter transmits confidential messages to the legitimate users while preventing from overhearing of the eavesdroppers.  ... 
arXiv:1901.07955v1 fatcat:3pb27rlc45c3dmnjgwmjyspvb4

Performance Analysis for Training-Based Multi-Pair Two-Way Full-Duplex Relaying with Massive Antennas [article]

Zhanzhan Zhang, Zhiyong Chen, Manyuan Shen, Bin Xia, Weiliang Xie, and Yong Zhao
2016 arXiv   pre-print
This paper considers a multi-pair two-way amplify-and-forward relaying system, where multiple pairs of full-duplex users are served via a full-duplex relay with massive antennas, and the relay adopts maximum-ratio  ...  When the number of relay antennas is finite, we derive an approximate sum rate expression which is shown to be a good predictor of the ergodic sum rate, especially in large number of antennas.  ...  The model involves both the uplink channels (from users to the receive antenna array of the relay) and the downlink channles (from the transmit antennas of the relay to users).  ... 
arXiv:1612.04654v1 fatcat:d2vykhm2dzendgyfw6dcex6i6i
« Previous Showing results 1 — 15 out of 59 results