Paper Info
Title
New Simple Capacity Estimation Method For Multiuser Block Diagonalization Transmission
Abstract
The multiple input multiple output (MMO) technique enables the application of spatial multiplexing as a way of increasing the spectrum efficiency. However, only a few antenna branches are allowed at a simple mobile terminal (MT) and the MMO effect is limited for those MTs. Multiuser (MU)-MIMO techniques were proposed to support such simple terminals to overcome such problems. Among them, the block diagonalization algorithm is well known as a practical linear precoding technique for downlink in the MU-MIMO systems. Because the number of users supported by the access point is limited and the improvement in the spectrum efficiency greatly depends on the combination of spatially multiplexed user, a simple transmission performance estimation method is needed.In this paper, we propose a new capacity estimation method for MU-MIMO systems. The proposed method estimates the achievable bit rate in MU-MIMO while significantly reducing the calculation load compared to that for direct estimation in the block diagopalization algorithm. Theoretical analysis and the simulation results confirm the validity of the proposed method.
Year
DOI
Venue
2007
10.1109/VETECS.2007.381
2007 IEEE 65TH VEHICULAR TECHNOLOGY CONFERENCE, VOLS 1-6
Keywords
Field
DocType
precoding,spectrum,spectrum efficiency,downlink,channel capacity,signal to noise ratio,mimo,resource management,spatial multiplexing
Computer science,Signal-to-noise ratio,MIMO,Electronic engineering,Spectral efficiency,Multiplexing,Channel capacity,Precoding,Spatial multiplexing,Telecommunications link
Conference
ISSN
Citations 
PageRank 
1550-2252
1
0.38
References 
Authors
5
5
Name
Order
Citations
PageRank
Riichi Kudo18115.69
Yasushi Takatori29224.89
atsushi ohta36615.31
Kentaro Nishimori416531.27
S. Kubota59827.01