Pre-Equalization for TDD Systems with Imperfect Transceiver Calibration

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 fo...

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Bibliographic Details
Main Authors: Habendorf, R., Fettweis, G.
Format: Conference Proceeding
Language:English
Subjects:
Base stations
Calibration
Downlink
Matrix converters
Mobile antennas
Receiving antennas
Reflector antennas
Transceivers
Transmitters
Transmitting antennas
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Summary: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.
ISSN:1550-2252
DOI:10.1109/VETECS.2008.288