Analysis Of The Impact of Channel Estimation Errors on the Decomposition of Multiuser Mimo Channels

Author

Tejera, Pedro ; Utschick, Wolfgang ; Bauch, Gerhard ; Nossek, Josef A.

Author_Institution

Inst. for Circuit Theory & Signal Process., Munich Technol. Univ.

Volume

4

fYear

2006

fDate

14-19 May 2006

Abstract

In the work at hand a general procedure to analyze the impact of channel estimation errors on the performance of decomposition techniques for multiuser MIMO channels is presented. In particular, this procedure is applied to a decomposition technique called cooperative zero-forcing with successive encoding and successive allocation method (CZF-SESAM). Based on the resulting analytical expressions the transmitter is able to adjust bit and power loading so that in spite of estimation errors transmission quality requirements can still be met

Keywords

MIMO systems; channel allocation; channel coding; channel estimation; multiuser channels; bit loading; channel estimation errors; cooperative zero-forcing; multiple input multiple output systems; multiuser MIMO channel decomposition; power loading; successive encoding and successive allocation method; Channel estimation; Downlink; Error analysis; Estimation error; MIMO; Matrix decomposition; Performance analysis; Signal processing algorithms; Transmitters; Transmitting antennas;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech and Signal Processing, 2006. ICASSP 2006 Proceedings. 2006 IEEE International Conference on

Conference_Location

Toulouse

ISSN

1520-6149

Print_ISBN

1-4244-0469-X

Type

conf

DOI

10.1109/ICASSP.2006.1660898

Filename

1660898