Results 11 to 20 of about 2,075,015 (178)

Road State Inference via Channel State Information

open access: yesIEEE Transactions on Vehicular Technology, 2023
A wide variety of sensor technologies are recently being adopted for traffic monitoring applications. Since most of these technologies rely on wired infrastructure, the installation and maintenance costs limit the deployment of the traffic monitoring systems. In this paper, we introduce a traffic monitoring approach that exploits physical layer samples
Halit Bugra Tulay, Can Emre Koksal
openaire   +2 more sources

Precoding Algorithm Based on Imperfect Channel State Information [PDF]

open access: yesJisuanji gongcheng, 2017
For down-link multi-user Multiple Input Multiple Output(MIMO)relay system,a linear precoding algorithm is proposed with the channel estimation errors and the antenna correlation taken into account.The cost function is designed with Minimum Mean Square ...
FANG Zhu,CHEN Xiaomin,HU Xujun,ZHU Qiuming
doaj   +1 more source

Channel Capacity Bounds in the Presence of Quantized Channel State Information

open access: yesEURASIP Journal on Wireless Communications and Networking, 2010
The goal of this paper is to investigate the effect of channel side information on increasing the achievable rates of continuous power-limited non-Gaussian channels. We focus on the case where (1) there is imperfect channel quality information available
Behrooz Makki   +2 more
doaj   +2 more sources

Machine learning based low-complexity channel state information estimation

open access: yesEURASIP Journal on Advances in Signal Processing, 2023
In 5G communications, the acquisition of accurate channel state information (CSI) is of great importance to the hybrid beamforming of millimeter wave (mmWave) massive multiple-input multiple-output (MIMO) system.
Juan Meng   +4 more
doaj   +1 more source

A channel state information based virtual MAC spoofing detector

open access: yesHigh-Confidence Computing, 2022
Physical layer security has attracted lots of attention with the expansion of wireless devices to the edge networks in recent years. Due to limited authentication mechanisms, MAC spoofing attack, also known as the identity attack, threatens wireless ...
Peng Jiang, Hongyi Wu, Chunsheng Xin
doaj   +1 more source

Cooperative Multiple-Access Channels With Distributed State Information [PDF]

open access: yesIEEE Transactions on Information Theory, 2021
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 imperfect channel state information at receiver (CSIR).
Lorenzo Miretti   +3 more
openaire   +2 more sources

Uplink Assisted MIMO Channel Feedback Method Based on Deep Learning

open access: yesEntropy, 2023
In order to solve the problem wherein too many base station antennas are deployed in a massive multiple-input–multiple-output system, resulting in high overhead for downlink channel state information feedback, this paper proposes an uplink-assisted ...
Qingli Liu, Jiaxu Sun, Peiling Wang
doaj   +1 more source

Wiretap Channel with Rate-Limited Channel State Information [PDF]

open access: yesMathematical Problems in Engineering, 2015
We revisit a channel coding problem where the channel state information (CSI) is rate-limited (or coded) and available to the channel encoder. A wiretapper is added into this model, and the confidential message is intended only for the legal receiver and should be kept from being eavesdropped by the wiretapper.
Xinxing Yin, Liang Pang, Zhi Xue
openaire   +1 more source

Deep Learning-Based Fall Detection Using WiFi Channel State Information

open access: yesIEEE Access, 2023
Falls have always been one of the major threats to the health and well-being of elderly people, particularly for those living alone. Both wearable and non-wearable fall detection systems have already been developed.
Yi Chu   +4 more
doaj   +1 more source

ParEst: joint estimation of the OFDM channel state information in MIMO systems

open access: yesEURASIP Journal on Wireless Communications and Networking, 2020
OFDM channel state information (CSI) is needed for determining key parameters in MIMO transmissions. In this paper, a novel CSI estimation method, ParEst, is proposed, which estimates the CSI from multiple transmitting antennas simultaneously.
Zhenghao Zhang
doaj   +1 more source

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