An enhanced transmit diversity scheme for MIMO MC-CDMA systems using three antennas

Marousis, A; Constantinou, P

dc.contributor.author	Marousis, A	en
dc.contributor.author	Constantinou, P	en
dc.date.accessioned	2014-03-01T02:51:02Z
dc.date.available	2014-03-01T02:51:02Z
dc.date.issued	2007	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/35317
dc.subject	Channel estimation	en
dc.subject	MC-CDMA	en
dc.subject	MIMO	en
dc.subject	SFBC	en
dc.subject	Space diversity	en
dc.subject.other	Alamouti's scheme	en
dc.subject.other	Antenna switching	en
dc.subject.other	Full rate	en
dc.subject.other	Inter-element spacing	en
dc.subject.other	MC-CDMA	en
dc.subject.other	MIMO	en
dc.subject.other	MIMO MC-CDMA system	en
dc.subject.other	Modulation formats	en
dc.subject.other	Multi carrier systems	en
dc.subject.other	Multi-input multi-output	en
dc.subject.other	Receiver structure	en
dc.subject.other	SFBC	en
dc.subject.other	Simulated results	en
dc.subject.other	Space diversity	en
dc.subject.other	Spatial channel models	en
dc.subject.other	Time variations	en
dc.subject.other	Transmit antenna	en
dc.subject.other	Transmit diversity scheme	en
dc.subject.other	Channel estimation	en
dc.subject.other	Code division multiple access	en
dc.subject.other	Multicarrier modulation	en
dc.subject.other	Multiplexing	en
dc.subject.other	Semiconductor counters	en
dc.subject.other	Antennas	en
dc.title	An enhanced transmit diversity scheme for MIMO MC-CDMA systems using three antennas	en
heal.type	conferenceItem	en
heal.identifier.primary	10.1049/ic.2007.1275	en
heal.identifier.secondary	http://dx.doi.org/10.1049/ic.2007.1275	en
heal.publicationDate	2007	en
heal.abstract	In this work, an enhanced transmit diversity scheme for downlink scenarios is presented for multi-input multi-output, multicarrier systems. Specifically, orthogonal, full rate operation of Alamouti's scheme has been utilized in an architecture with three transmit antennas, whereas at each time instant only two of them are active. The antenna switching is based on a predetermined pattern achieving a space diversity increase and at the same time transparency with respect to the receiver structure. The performed analysis and the simulated results indicate a performance increase especially for the cases with variable inter-element spacing. These results become more visible as the channel time variation increases. The evaluation has been based on realistic spatial channel models for various modulation formats and FEC codes.	en
heal.journalName	IET Seminar Digest	en
dc.identifier.doi	10.1049/ic.2007.1275	en
dc.identifier.volume	2007	en
dc.identifier.issue	11961	en