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Won-Seok Lee - IEEE Xplore Author Profile
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Won-Seok Lee

Publications
6
Citations
78
Publications by Year
20172021
Co-Authors:
Show All Co-Authors (13)
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Won-Seok Lee

Affiliation

Department of Information and Communication Engineering
Sejong University
Seoul, South Korea
Department of Convergence Engineering for Intelligent Drone
Sejong University
Seoul, South Korea

Publication Topics

Biography

Won-Seok Lee received the B.S. and M.S. degrees in information and communication engineering from Sejong University, Seoul, South Korea, in 2016 and 2018, respectively, where he is currently pursuing the Ph.D. degree with the Department of Information and Communication Engineering and the Department of Convergence Engineering for Intelligent Drone. His research interests include the areas of signal processing for wireless communication system and ambient RF communication systems.(Based on document published on 15 April 2021).
Publications
6
Citations
78
Publications by Year
20172021
Co-Authors:
Show All Co-Authors (13)
Author's Published Works

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Hybrid Beamforming With Reduced RF Chain Based on PZF and PD-NOMA in mmWave Massive MIMO Systems

Yeong-Rong Lee;Won-Seok Lee;Ji-Sung Jung;Chan-Yeob Park;Young-Hwan You;Hyoung-Kyu Song

IEEE Access
Year: 2021 | Volume: 9 | Journal Article |
Cited by: Papers (7)
Hybrid beamforming (HB) is a solution for reducing radio frequency (RF) chains in millimeter-wave (mmWave) massive MIMO systems. By reducing RF chains, HB can achieve energy efficient transmission compared to fully digital beamforming of massive MIMO system. However, if the resolution of RF precoder is not quantized, the energy consumption of HB may become similar to fully digital beamforming. And...Show More

Hybrid Beamforming With Reduced RF Chain Based on PZF and PD-NOMA in mmWave Massive MIMO Systems

Yeong-Rong Lee;Won-Seok Lee;Ji-Sung Jung;Chan-Yeob Park;Young-Hwan You;Hyoung-Kyu Song

Year: 2021 | Volume: 9 | Journal Article |

Deep Learning-Based Bootstrap Detection Scheme for Digital Broadcasting System

Tae-Hoon Kang;Won-Seok Lee;Myung-Sun Baek;Byungjun Bae;Hyoung-Kyu Song

IEEE Access
Year: 2021 | Volume: 9 | Journal Article |
Cited by: Papers (2)
In the advanced television systems committee (ATSC) 3.0 system, the concept of flexibility is significant for supporting backward compatibility within the same ATSC 3.0 system. However, since the conventional bootstrap signal detection scheme is difficult to support the flexibility, the conventional bootstrap signal detection scheme should be newly designed according to the change of version. In t...Show More

Deep Learning-Based Bootstrap Detection Scheme for Digital Broadcasting System

Tae-Hoon Kang;Won-Seok Lee;Myung-Sun Baek;Byungjun Bae;Hyoung-Kyu Song

Year: 2021 | Volume: 9 | Journal Article |

An Efficient Precoding Method for Improved Downlink Massive MIMO System

Jae-Hyun Ro;Won-Seok Lee;Jong-Gyu Ha;Hyoung-Kyu Song

IEEE Access
Year: 2019 | Volume: 7 | Journal Article |
Cited by: Papers (13)
This paper proposes an efficient precoding method based on Neumann series (NS) to improve error performances for already developed diagonal NS (DNS) in massive MIMO system. The conventional DNS has very low complexity compared to a zero-forcing (ZF) and any other NS based ZF precoding methods such as tri-diagonal NS (TNS) and eigenvalue based NS. However, the conventional DNS has very poor error p...Show More

An Efficient Precoding Method for Improved Downlink Massive MIMO System

Jae-Hyun Ro;Won-Seok Lee;Jong-Gyu Ha;Hyoung-Kyu Song

Year: 2019 | Volume: 7 | Journal Article |

Performance Enhancement Using Receive Diversity With Power Adaptation in the NOMA System

Ji-Hwan Kim;Won-Seok Lee;Hyoung-Kyu Song

IEEE Access
Year: 2019 | Volume: 7 | Journal Article |
Cited by: Papers (7)
This paper proposes receive diversity with power adaptation for a non-orthogonal multiple access (NOMA) system in a multi-user circumstance. Since the basic concept of power domain NOMA divides user data by the difference of power, successive interference cancellation (SIC) is necessary to extract user data. In the process of SIC calculation, the error propagation has occurred. Therefore, signal-t...Show More

Performance Enhancement Using Receive Diversity With Power Adaptation in the NOMA System

Ji-Hwan Kim;Won-Seok Lee;Hyoung-Kyu Song

Year: 2019 | Volume: 7 | Journal Article |

Determination Scheme for Detection Thresholds Using Multiple Antennas in Wi-Fi Backscatter Systems

Won-Seok Lee;Chang-Hee Kang;Yeon-Kug Moon;Hyoung-Kyu Song

IEEE Access
Year: 2017 | Volume: 5 | Journal Article |
Cited by: Papers (17)
In this paper, a detection scheme for the uplink transmission of Wi-Fi backscatter system is proposed. In the uplink transmission, a backscatter tag modulates signals from a Wi-Fi access point by backscattering. Since the reflection occurs, the backscattered signal experiences more attenuation than the direct Wi-Fi signals to a Wi-Fi reader. Most recent studies focus on effective detection techniq...Show More

Determination Scheme for Detection Thresholds Using Multiple Antennas in Wi-Fi Backscatter Systems

Won-Seok Lee;Chang-Hee Kang;Yeon-Kug Moon;Hyoung-Kyu Song

Year: 2017 | Volume: 5 | Journal Article |

Signal Detection Scheme in Ambient Backscatter System With Multiple Antennas

Chang-Hee Kang;Won-Seok Lee;Young-Hwan You;Hyoung-Kyu Song

IEEE Access
Year: 2017 | Volume: 5 | Journal Article |
Cited by: Papers (32)
The ambient backscatter technique is a communication technology that uses ambient radio frequency signals to enable battery-free devices to communicate with other device. This paper proposes the ambient backscatter technique using multiple antennas. Since the tag only plays a role of reflecting signals, a signal is transmitted with a power allocation in the case of multiple antennas. At the receiv...Show More

Signal Detection Scheme in Ambient Backscatter System With Multiple Antennas

Chang-Hee Kang;Won-Seok Lee;Young-Hwan You;Hyoung-Kyu Song

Year: 2017 | Volume: 5 | Journal Article |

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