Multi-Dimensional Beamforming for Adaptive MIMO Systems

A novel scheme called multi-dimensional beamforming is proposed for adaptive MIMO systems, which can achieve higher capacity than eigen-beamforming when more feedback bandwidth is available. Theoretical analysis and numerical results show that multi-dimensional beamforming improves capacity as compa...

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Bibliographic Details
Main Authors: Gheryani, M., Zhiyuan Wu, Shayan, Y.R.
Format: Conference Proceeding
Language:English
Subjects:
Adaptive systems
Array signal processing
Bandwidth
Bit error rate
Concatenated codes
Feedback
MIMO
Signal analysis
Signal to noise ratio
Space time codes
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Description
Summary:A novel scheme called multi-dimensional beamforming is proposed for adaptive MIMO systems, which can achieve higher capacity than eigen-beamforming when more feedback bandwidth is available. Theoretical analysis and numerical results show that multi-dimensional beamforming improves capacity as compared to eigen-beamforming at relatively high signal-to-noise ratio. By extension of the existing beamforming scheme to multi-dimension, we are able to concatenate the scheme with space-time codes. Simulation results are also provided to evaluate the concatenated schemes with linear space-time codes at various data rates in terms of bit error rate.
DOI:10.1109/ISWPC.2009.4800596