Optimal transmit strategies for QSTBC in MIMO Ricean Channels with Linear Detection

Konferenz: PIMRC 2005 - 16th Annual IEEE International Symposium on Personal Indoor and Mobile Radio Communications
11.09.2005 - 14.09.2005 in Berlin, Germany

Tagungsband: PIMRC 2005

Seiten: 5Sprache: EnglischTyp: PDF

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Sezgin, Aydin; Jorswieck, Eduard A. (Fraunhofer-Institute for Telecommunications, Einsteinufer 37, 10587 Berlin, Germany)
Costa, Elena (Siemens AG, ICM N PG NT RC FR, Sankt-Martin Str. 76, 81541 Munich, Germany)

In this work, we study a MIMO system employing quasi-orthogonal space-time block codes (QSTBC) at the transmitter with an MMSE receiver in a Ricean flat-fading environment. We assume that the receiver has perfect CSI and the transmitter knows only the mean channel matrix either by feedback or channel estimation. We analyze the impact of the mean component on the MSE, the optimal transmit strategy and the optimal power allocation. Finally, we derive some bounds on the error rate performance for different scenarios with the MMSE receiver.