3 citations · 6 across the 11 of their papers we have counts for
5 papers · 1 filter
Multi-Rate Variable-Length CSI Compression for FDD Massive MIMO
Bumsu Park, Heedong Do, Namyoon Lee
For frequency-division-duplexing (FDD) systems, channel state information (CSI) should be fed back from the user terminal to the base station. This feedback overhead becomes proble…
Hybrid Arrays: How Many RF Chains Are Required to Prevent Beam Squint?
Heedong Do, Namyoon Lee, Robert W. Heath +1
With increasing frequencies, bandwidths, and array apertures, the phenomenon of beam squint arises as a serious impairment to beamforming. Fully digital arrays with true time delay…
Reconfigurable ULAs for Line-of-Sight MIMO Transmission
Heedong Do, Namyoon Lee, Angel Lozano
This paper establishes an upper bound on the capacity of line-of-sight multiantenna channels over all possible antenna arrangements and shows that uniform linear arrays (ULAs) with…
Soft-Output Detection Methods for Sparse Millimeter Wave MIMO Systems with Low-Precision ADCs
Yo-Seb Jeon, Heedong Do, Song-Nam Hong +1
The use of low-precision analog-to-digital converters (ADCs) is a low-cost and power-efficient solution for a millimeter wave (mmWave) multiple-input multiple-output (MIMO) system…
On the Capacity of MISO Channels with One-Bit ADCs and DACs
Yunseo Nam, Heedong Do, Yo-Seb Jeon +1
A one-bit wireless transceiver is a promising communication architecture that not only can facilitate the design of mmWave communication systems but also can extremely diminish pow…