100 citations · 148 across the 4 of their papers we have counts for
7 papers
Two-Stage Beamformer Design for Massive MIMO Downlink By Trace Quotient Formulation
Donggun Kim, Gilwon Lee, Youngchul Sung
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…
Training Beam Sequence Design for Millimeter-Wave MIMO Systems: A POMDP Framework
Junyeong Seo, Youngchul Sung, Gilwon Lee +1
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…
Pilot Beam Sequence Design for Channel Estimation in Millimeter-Wave MIMO Systems: A POMDP Framework
Junyeong Seo, Youngchul Sung, Gilwon Lee +1
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 ch…
Pilot Signal Design for Massive MIMO Systems: A Received Signal-To-Noise-Ratio-Based Approach
Jungho So, Donggun Kim, Yuni Lee +1
In this paper, the pilot signal design for massive MIMO systems to maximize the training-based received signal-to-noise ratio (SNR) is considered under two channel models: block Ga…
Filter-And-Forward Relay Design for MIMO-OFDM Systems
Donggun Kim, Youngchul Sung, Jihoon Chung
In this paper, the filter-and-forward (FF) relay design for multiple-input multiple-output (MIMO) orthogonal frequency-division multiplexing (OFDM) systems is considered. Due to th…
Outage Probability and Outage-Based Robust Beamforming for MIMO Interference Channels with Imperfect Channel State Information
Juho Park, Youngchul Sung, Donggun Kim +1
In this paper, the outage probability and outage-based beam design for multiple-input multiple-output (MIMO) interference channels are considered. First, closed-form expressions fo…