Results 11 to 20 of about 32,324,543 (245)

Wi-SL: Contactless Fine-Grained Gesture Recognition Uses Channel State Information [PDF]

open access: yesSensors, 2020
In recent years, with the development of wireless sensing technology and the widespread popularity of WiFi devices, human perception based on WiFi has become possible, and gesture recognition has become an active topic in the field of human-computer ...
Zhanjun Hao   +4 more
doaj   +2 more sources

Skeleton-Based Human Pose Recognition Using Channel State Information: A Survey [PDF]

open access: yesSensors, 2022
With the increasing demand for human-computer interaction and health monitoring, human behavior recognition with device-free patterns has attracted extensive attention. The fluctuations of the Wi-Fi signal caused by human actions in a Wi-Fi coverage area
Zhengjie Wang   +6 more
doaj   +2 more sources

Impact of Imperfect Channel State Information on RS Coding Aided Hybrid-ARQ in Rayleigh Fading Channels [PDF]

open access: yes, 2010
Hybrid Automatic-Repeat-reQuest (ARQ) schemes are capable of maintaining reliable communications for transmission over hostile wireless channels. In coherent detection aided schemes, the achievable performance substantially depends on the accuracy of ...
H. A. Ngo   +3 more
core   +1 more source

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

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

Smartphone-Based Indoor Fingerprinting Localization Using Channel State Information

open access: yesIEEE Access, 2019
Indoor localization technology plays an important role in many indoor application scenarios. Existing WiFi-based indoor localization methods mainly obtain channel state information (CSI) through the personal computer, or obtain coarse-grained received ...
Pengpeng Chen   +5 more
doaj   +1 more source

The Broadcast Approach in Communication Networks

open access: yesEntropy, 2021
In this paper we review the theoretical and practical principles of the broadcast approach to communication over state-dependent channels and networks in which the transmitters have access to only the probabilistic description of the time-varying states ...
Ali Tajer   +2 more
doaj   +1 more source

Non-contact Human Motion Recognition Method Based on Channel State Information [PDF]

open access: yesJisuanji gongcheng, 2021
The performance of traditional sensors and cameras in motion recognition are affected by the environmental factors and limited by the risk of violating user privacy.Taking the Peking Opera actions as the research object, this paper proposes a non-contact
HAO Zhanjun, ZHANG Daiyang, DANG Xiaochao, DUAN Yu
doaj   +1 more source

Interference management with mismatched partial channel state information

open access: yesEURASIP Journal on Wireless Communications and Networking, 2017
We study the fundamental limits of communications over multi-layer wireless networks where each node has only limited knowledge of the channel state information.
Alireza Vahid   +3 more
doaj   +1 more source

Channel state information-based wireless localization by signal reconstruction

open access: yesEURASIP Journal on Wireless Communications and Networking, 2023
Wireless localization technology has been widely used in indoor and outdoor fields. Channel estimation based on channel state information is a hot research topic in recent years.
Yunbing Hu   +6 more
doaj   +1 more source

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