Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Namseok Chang"'
Autor:
Elena Volkova, Alexey Perchik, Konstantin Pavlov, Evgenii Nikolaev, Alexey Ayuev, Jaehyuck Park, Namseok Chang, Wonseok Lee, Justin Younghyun Kim, Alexander Doronin, Maksim Vilenskii
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-12 (2023)
Abstract Post-pandemic health operations have become a near-term reality, discussions around wearables are on the rise. How do wearable health solutions effectively deploy and use this opportunity to fill the gap between wellness and healthcare? In t
Externí odkaz:
https://doaj.org/article/e9c2ac5388ef4108b6d3e9974d587a60
Autor:
Konstantin Pavlov, Alexey Perchik, Vladimir Tsepulin, George Megre, Evgenii Nikolaev, Elena Volkova, Georgii Nigmatulin, Jaehyuck Park, Namseok Chang, Wonseok Lee, Justin Younghyun Kim
Publikováno v:
IEEE Access, Vol 11, Pp 23926-23934 (2023)
This study presents a newly released algorithm for smartwatches – Sweat loss estimation for running activities. A machine learning model (polynomial Kernel Ridge Regression) is used to estimate the sweat loss in milliliters. A clinical dataset of 7
Externí odkaz:
https://doaj.org/article/3f293dcd50ba4b8c92bfb2bfdb5ee086
Autor:
Konstantin Pavlov, Alexey Perchik, Vladimir Tsepulin, Georgii Megre, Evgenii Nikolaev, Elena Volkova, Jaehyuck Park, Namseok Chang, Wonseok Lee, Justin Younghyun Kim
Publikováno v:
2022 IEEE-EMBS International Conference on Wearable and Implantable Body Sensor Networks (BSN).
Autor:
Artem Nikishov, Konstantin Pavlov, Namseok Chang, Jaehyuck Park, Wonseok Lee, Justin Younghyun Kim
Publikováno v:
2022 IEEE-EMBS International Conference on Biomedical and Health Informatics (BHI).
Publikováno v:
IEEE Sensors Journal. 16:3746-3755
When a user walks with a smartphone, acceleration is divided into three components. Two of the components are the vertical and horizontal accelerations according to walking dynamics, while the third is gravitational acceleration. Gravitational accele
Publikováno v:
IEEE Communications Letters. 16:1408-1411
In this letter, we extend the results of secure transmission with artificial noise over multiple-input single-output (MISO) wiretap channels. There is a case such that the transmitter knows the relative distance of the eavesdropper. That is, it knows
Publikováno v:
IEICE Transactions on Communications. :633-636
In this letter, a switched transmission technique is presented that can provide the orthogonal frequency division multiplexing (OFDM) systems with additional diversity gain. The space-time block coding (STBC) and space-frequency block coding (SFBC) a
Publikováno v:
IEICE Transactions on Communications. :3716-3720
Instead of pilot tones, the impulse sample is exploited for channel estimation in Impulse Postfix OFDM systems [1]. As the magnitude of impulse sample is increased, the accuracy of channel estimation can be enhanced, but it may significantly increase
Publikováno v:
MILCOM 2007 - IEEE Military Communications Conference.
The estimation of channel state information in MIMO-OFDM systems is considered as a significant issue. In the conventional MIMO-OFDM systems, time divided or orthogonal pilot patterns are adopted to estimate the MIMO channel coefficients. However, th
Publikováno v:
VTC Fall
In this paper, we propose a novel orthogonal space- time-frequency block codes using Alamouti scheme for OFDM systems (STFBC-OFDM) employing two transmit antennas. Space-time block coded OFDM (STBC-OFDM) systems and space-frequency block coded OFDM (