Interference-free multi-user MIMO-OFDM

Author

Duplicy, Jonathan ; Louveaux, Jérôme ; Vandendorpe, Luc

Author_Institution

Commun. & Remote Sensing Lab., Univ. Catholique de Louvain, Belgium

Volume

3

fYear

2005

fDate

18-23 March 2005

Abstract

A multi-user downlink MIMO-OFDM scheme is considered. Perfect channel knowledge is assumed at the base station and linear processing is used at both the transmit and receive sides. The objective is to optimize the mean BER of the system while satisfying a transmit power constraint and fulfilling each user´s rate. FDMA and SDMA are investigated. We show how the multi-user interference induced by SDMA can be annihilated and exhibit that this multiple access technique should be preferred to FDMA.

Keywords

MIMO systems; OFDM modulation; error statistics; frequency division multiple access; multiuser channels; space division multiple access; FDMA; SDMA; frequency division multiple access; interference-free MIMO-OFDM; linear processing; mean BER optimization; multiuser downlink MIMO-OFDM; multiuser interference; perfect channel knowledge; space division multiple access; transmit power constraints; Base stations; Bit error rate; Downlink; Frequency division multiaccess; Interference constraints; MIMO; Multiaccess communication; OFDM; Receiving antennas; Transmitters;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech, and Signal Processing, 2005. Proceedings. (ICASSP '05). IEEE International Conference on

ISSN

1520-6149

Print_ISBN

0-7803-8874-7

Type

conf

DOI

10.1109/ICASSP.2005.1415918

Filename

1415918