Paper Info
Title
Codebook Design for Cross-Polarized Linear Antenna Array in LTE-A Downlink System
Abstract
Multiple-input multiple output (MIMO) has been adopted by long term evolution (LTE) and its updated version LTE-Advanced (LTE-A) to increase system spectrum efficiency. However, the benefits of multi-user (MU) MIMO highly rely on an accurate channel knowledge at the transmitter. So proper codebook design is a key problem for LTE-A FDD downlink system. In this paper, the channel characteristic specific to cross-polarized linear antenna array is analyzed, then its codebook design based on amplitude and phase adjustment is proposed for LTE-A downlink system. The proposed codebooks are compared to the differential scheme [7] on the average cell spectral efficiency and cell-edge user spectral efficiency evaluated through system level simulations. Simulation results show that the proposed codebooks significantly improve channel feedback efficiency and system performance.
Year
DOI
Venue
2011
10.1109/VETECF.2011.6092989
VTC Fall
Keywords
Field
DocType
codebook design,radio links,multiple input multiple output,lte-a downlink system,system spectrum efficiency,system performance,lte-a fdd downlink system,multiuser mimo,channel characteristic,cross-polarized linear antenna array,cell-edge user spectral efficiency,lte-advanced,system level simulation,long term evolution,channel feedback efficiency,linear antenna arrays,antenna array,mimo,spectral efficiency,cross polarization,spectrum,downlink,mathematical model
Transmitter,Computer science,Antenna array,MIMO,Communication channel,Electronic engineering,Spectral efficiency,Codebook,Telecommunications link,LTE Advanced
Conference
Volume
Issue
ISSN
null
null
1090-3038
ISBN
Citations 
PageRank 
978-1-4244-8328-0
2
0.42
References 
Authors
2
4
Name
Order
Citations
PageRank
Lu Wu1102.05
J. Chen211223.18
Hongwei Yang320.42
Di Lu4141.94