Zobrazeno 1 - 10
of 61
pro vyhledávání: '"Lee, Gilwon"'
Autor:
Jin, Huangping, Liu, Kunpeng, Lee, Gilwon, Farag, Emad J., Zhang, Min, Zhu, Dalin, Zhang, Leiming, Onggosanusi, Eko, Shafi, Mansoor, Tataria, Harsh
Since the introduction of fifth-generation new radio (5G-NR) in Third Generation Partnership Project (3GPP) Release 15, swift progress has been made to evolve 5G with 3GPP Release 18 emerging. A critical aspect is the design of massive multiple-input
Externí odkaz:
http://arxiv.org/abs/2210.08218
Autor:
Choi, Jinseok, Lee, Gilwon, Alkhateeb, Ahmed, Gatherer, Alan, Al-Dhahir, Naofal, Evans, Brian L.
Employing low-resolution analog-to-digital converters (ADCs) for millimeter wave receivers with large antenna arrays provides opportunity to efficiently reduce power consumption of the receiver. Reducing ADC resolution, however, results in performanc
Externí odkaz:
http://arxiv.org/abs/2003.03683
In this paper, we propose a two-stage analog combining architecture for millimeter wave (mmWave) communications with hybrid analog/digital beamforming and low-resolution analog-to-digital converters (ADCs). We first derive a two-stage combining solut
Externí odkaz:
http://arxiv.org/abs/1812.00802
In this paper, we investigate hybrid analog/digital beamforming for multiple-input multiple-output (MIMO) systems with low-resolution analog-to-digital converters (ADCs) for millimeter wave (mmWave) communications. In the receiver, we propose to spli
Externí odkaz:
http://arxiv.org/abs/1808.01013
We investigate uplink user scheduling for millimeter wave (mmWave) hybrid analog/digital beamforming systems with low-resolution analog-to-digital converters (ADCs). Deriving new scheduling criteria for the mmWave systems, we show that the channel st
Externí odkaz:
http://arxiv.org/abs/1804.03079
In this paper, randomly-directional beamforming (RDB) is considered for millimeter-wave (mmwave) multi-user (MU) multiple-input single-output (MISO) downlink systems. By using asymptotic techniques, the performance of RDB and the MU gain in mm-wave M
Externí odkaz:
http://arxiv.org/abs/1412.1665
In this paper, the problem of outer beamformer design based only on channel statistic information is considered for two-stage beamforming for multi-user massive MIMO downlink, and the problem is approached based on signal-to-leakage-plus-noise ratio
Externí odkaz:
http://arxiv.org/abs/1411.7121
In this paper, adaptive training beam sequence design for efficient channel estimation in large millimeter-wave(mmWave) multiple-input multiple-output (MIMO) channels is considered. By exploiting the sparsity in large mmWave MIMO channels and imposin
Externí odkaz:
http://arxiv.org/abs/1410.3711
Pilot Beam Sequence Design for Channel Estimation in Millimeter-Wave MIMO Systems: A POMDP Framework
In this paper, adaptive pilot beam sequence design for channel estimation in large millimeter-wave (mmWave) MIMO systems is considered. By exploiting the sparsity of mmWave MIMO channels with the virtual channel representation and imposing a Markovia
Externí odkaz:
http://arxiv.org/abs/1409.8434
Autor:
Lee, Gilwon, Sung, Youngchul
In this paper, a new user-scheduling-and-beamforming method is proposed for multi-user massive multiple-input multiple-output (massive MIMO) broadcast channels in the context of two-stage beamforming. The key ideas of the proposed scheduling method a
Externí odkaz:
http://arxiv.org/abs/1403.6931