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 Pre-filtering antenna array for downlink TDD MC-CMA systems
Please use this identifier to cite or link to this item http://hdl.handle.net/10773/5574

title: Pre-filtering antenna array for downlink TDD MC-CMA systems
authors: Silva, Adão
Gameiro, Atílio
keywords: Antenna array
Antenna arrays
Code division multiple access
Orthogonal frequency division multiplexing
Radio interference
Signal receivers
Time division multiple access
Base stations
Telecommunication links
issue date: 2003
publisher: IEEE
abstract: This communication deals with downlink time division duplex MC-CDMA system, and presents a frequency domain pre-filtering technique, where the base station is equipped with an antenna array. We show that the space-filtering approach proposed allows to format the transmitted signals so that the multiple access interference at the mobile terminals is reduced allowing to transfer a significant part of the computational burden to the base station, and therefore enabling the use of a very low complex receiver at mobile. This approach uses the time division duplex channel reciprocity between uplink and downlink to obtain the channel state information. Simulation results are presented to demonstrate the effectiveness of the proposed pre-filtering algorithm.
URI: http://hdl.handle.net/10773/5574
ISSN: 1090-3038
source: VTC 2003-Spring: IEEE 57th Vehicular Technology Conference
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