30 citations · 40 across the 6 of their papers we have counts for
4 papers · 1 filter
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…
Quantization Bounds on Grassmann Manifolds of Arbitrary Dimensions and MIMO Communications with Feedback
Wei Dai, Youjian Liu, Brian Rider
This paper considers the quantization problem on the Grassmann manifold with dimension n and p. The unique contribution is the derivation of a closed-form formula for the volume of…
Multi-Access MIMO Systems with Finite Rate Channel State Feedback
Wei Dai, Brian Rider, Youjian Liu
This paper characterizes the effect of finite rate channel state feedback on the sum rate of a multi-access multiple-input multiple-output (MIMO) system. We propose to control the…
Effect of Finite Rate Feedback on CDMA Signature Optimization and MIMO Beamforming Vector Selection
Wei Dai, Youjian Liu, Brian Rider
We analyze the effect of finite rate feedback on CDMA (code-division multiple access) signature optimization and MIMO (multi-input-multi-output) beamforming vector selection. In CD…