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VTC
2006
IEEE
14 years 1 months ago
Measurement of Time-Varying MIMO Channel for Performance Analysis of Closed-Loop Transmission
— A real-time multiple-input multiple-output (MIMO) channel measurement system was implemented by using a 4×4 MIMO software defined radio (SDR) testbed. A target application of...
Kei Mizutani, Kei Sakaguchi, Jun-ichi Takada, Kiyo...
TWC
2010
13 years 2 months ago
MIMO Broadcast Channels with Spatial Heterogeneity
We develop a realistic model for multiple-input multiple-output (MIMO) broadcast channels, where each randomly located user's average SNR depends on its distance from the tran...
Illsoo Sohn, Jeffrey G. Andrews, Kwang Bok Lee
TWC
2008
139views more  TWC 2008»
13 years 7 months ago
Statistical Multimode Transmit Antenna Selection for Limited Feedback MIMO Systems
In a wireless multiple-input multiple-output (MIMO) system, transmit antenna selection is an effective means of achieving good performance with low complexity. We consider spatial ...
Chang Soon Park, Kwang Bok Lee
CORR
2011
Springer
177views Education» more  CORR 2011»
12 years 11 months ago
Downlink SDMA with Limited Feedback in Interference-Limited Wireless Networks
The tremendous capacity gains promised by space division multiple access (SDMA) depend critically on the accuracy of the transmit channel state information. In the broadcast chann...
Marios Kountouris, Jeffrey G. Andrews
GLOBECOM
2009
IEEE
13 years 5 months ago
Optimizing Training-Based Transmission for Correlated MIMO Systems with Hybrid Feedback
Abstract--In this paper, we consider multiple-input multipleoutput (MIMO) communication systems with combined channel covariance feedback (CCF) and channel gain feedback (CGF), her...
Xiangyun Zhou, Tharaka A. Lamahewa, Parastoo Sadeg...