Precoder Design for MIMO Broadcast Channels

Author

Shao, Xun ; Yuan, Jinhong ; Rapajic, Predrag

Author_Institution

Sch. of Electr. Eng. & Telecommun., New South Wales Univ., Kensington, NSW

fYear

2005

fDate

2-4 Feb. 2005

Firstpage

112

Lastpage

118

Abstract

This paper considers precoder designs in downlink MIMO broadcast channels. We present a MMSE feedback precoding scheme, which is analogue to the MMSE generalized decision feedback equalizer (GDFE) in the uplink MIMO multiple access channel. The proposed scheme obtains the same level of total mean-square error as the MMSE-GDFE in the dual uplink with perfect decision, and it achieves a sum capacity that is very close to the sum capacity of MIMO BC. It can also offer a significant gain over the linear precoding techniques in term of average error probability

Keywords

MIMO systems; broadcast channels; channel coding; decision feedback equalisers; least mean squares methods; multi-access systems; precoding; radio links; wireless channels; MIMO broadcast channels; MMSE feedback precoding scheme; MMSE generalized decision feedback equalizer; linear precoding techniques; precoder design; uplink MIMO multiple access channel; Broadcasting; Crosstalk; Decoding; Indium phosphide; Interference; MIMO; Receiving antennas; Remotely operated vehicles; Signal to noise ratio;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications Theory Workshop, 2005. Proceedings. 6th Australian

Conference_Location

Brisbane, Qld.

Print_ISBN

0-7803-9007-5

Type

conf

DOI

10.1109/AUSCTW.2005.1624236

Filename

1624236