Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Hyunwook Yang"'
Publikováno v:
International Journal of Antennas and Propagation, Vol 2016 (2016)
This paper presents a novel calibration method that equalizes the impulse responses of all the Radio Frequency (RF) modules of an antenna array system operating in Long-Term Evolution (LTE) evolved NodeB (eNB). The proposed technique utilizes the Zad
Externí odkaz:
https://doaj.org/article/8dedfc457c514fccaa15f086df9a8eff
Autor:
Hyunwook Yang, Seungwon Choi
Publikováno v:
International Journal of Antennas and Propagation, Vol 2013 (2013)
We propose a novel precoding algorithm that is a zero-forcing (ZF) method combined with adaptive beamforming in the Worldwide Interoperability for Microwave Access (WiMAX) system. In a Multiuser Multiple-Input Multiple-Output (MU-MIMO) system, ZF is
Externí odkaz:
https://doaj.org/article/49a26a8bcc6c45819e6e9e204d705239
Publikováno v:
IEICE Transactions on Communications. :280-287
Publikováno v:
IEICE Transactions on Communications. :1429-1434
Publikováno v:
Wireless Personal Communications. 74:789-802
This letter presents a novel method of user selection in a downlink multi-user multiple input multiple output (MU-MIMO) system employing the precoding procedures of zero forcing or block diagonalization (BD). The proposed technique utilizes the cross
Autor:
Vladimir Ivanov, Markus Dominik Mueck, June Kim, Gianmarco Baldini, Chiyoung Ahn, Seungwon Choi, Hyunwook Yang, Antti Piipponen
Publikováno v:
IEEE Wireless Communications. 19:9-16
This article introduces a novel flexible mobile device reconfiguration classes (MDRCs) framework which is expected to be applicable to future generation mass market radio devices. This framework sets the scene for a vision of a smooth evolution of re
Publikováno v:
Wireless Personal Communications. 70:283-293
In this work, a novel lattice reduction (LR) precoding method is proposed. The technique combines conventional LR precoding with a method of reducing the singular value coefficients of the LR-reduced basis matrix. The performance of the new technique
Publikováno v:
Analog Integrated Circuits and Signal Processing. 73:559-567
Since H. Yao proposed the lattice reduction (LR)-aided detection algorithm for the MIMO detector, one can exploit the diversity gain provided by the LR method to achieve performance comparable to the maximum likelihood (ML) algorithm but with complex
Autor:
Hyunwook Yang, Seungwon Choi
Publikováno v:
IEICE Transactions on Communications. :2405-2413
Publikováno v:
ICTC
This paper proposes a novel user selection algorithm to enhance the system performance of a multi-user, multiple-input, multiple-output (MU-MIMO) system. The proposed algorithm first selects a primary user set using a predetermined threshold, and sel