24 citations · 140 across the 21 of their papers we have counts for
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cs.IT2008★ 2 cited
A Simple Converse Proof and a Unified Capacity Formula for Channels with Input Constraints
Youjian Liu
Given the single-letter capacity formula and the converse proof of a channel without constraints, we provide a simple approach to extend the results for the same channel but with c…
cs.IT2008★ 3 cited
How Many Users should be Turned On in a Multi-Antenna Broadcast Channel?
Wei Dai, Youjian, Liu +2
This paper considers broadcast channels with L antennas at the base station and m single-antenna users, where L and m are typically of the same order. We assume that only partial c…
cs.IT2008
Joint Beamforming for Multiaccess MIMO Systems with Finite Rate Feedback
Wei Dai, Brian C. Rider, Youjian Liu
This paper considers multiaccess multiple-input multiple-output (MIMO) systems with finite rate feedback. The goal is to understand how to efficiently employ the given finite feedb…