Pre-Equalization for TDD Systems with Imperfect Transceiver Calibration

Author

Habendorf, René ; Fettweis, Gerhard

Author_Institution

Vodafone Dept. Mobile Commun. Syst., Tech. Univ. Dresden, Dresden

fYear

2008

fDate

11-14 May 2008

Firstpage

1369

Lastpage

1373

Abstract

We investigate nonlinear pre-equalization techniques for the downlink of multi-user systems from a transmitter equipped with multiple antennas to non-cooperative single antenna mobile receivers. The contribution of this paper is the derivation of minimum mean square error (MMSE) pre- equalization for imperfect transceiver calibration at the base station and the resulting nonreciprocal channels. The performance of the proposed schemes is investigated numerically in both, uncoded and coded transmission.

Keywords

antenna arrays; mean square error methods; mobile antennas; radio links; radio receivers; radio transmitters; time division multiple access; time division multiplexing; transceivers; MMSE pre-equalization; TDD systems; imperfect transceiver calibration; minimum mean square error; multiple antennas; multiuser system downlink; noncooperative single antenna mobile receivers; nonlinear pre-equalization techniques; nonreciprocal channels; receiver chains; time division duplex system; transmitter chains; Base stations; Calibration; Downlink; Matrix converters; Mobile antennas; Receiving antennas; Reflector antennas; Transceivers; Transmitters; Transmitting antennas;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 2008. VTC Spring 2008. IEEE

Conference_Location

Singapore

ISSN

1550-2252

Print_ISBN

978-1-4244-1644-8

Electronic_ISBN

1550-2252

Type

conf

DOI

10.1109/VETECS.2008.288

Filename

4525844