Spectrally efficient transmit diversity scheme for differentially modulated multicarrier transmissions

2.50
Hdl Handle:
http://hdl.handle.net/10547/270796
Title:
Spectrally efficient transmit diversity scheme for differentially modulated multicarrier transmissions
Authors:
Allen, Ben; Said, F.; Bauch, G.; Auer, G.; Aghvami, A.Hamid
Abstract:
Cyclic delay diversity is a simple, yet effective, transmit diversity scheme for multicarrier based transmissions employing coherent digital linear modulation schemes. It is shown that, for satisfactory operation, the scheme requires additional channel estimation overhead compared to single antenna and traditional space–time coded transmissions owing to the inherent increase in frequency selective fading. The authors analyse the additional channel estimation overhead requirement for a Hiperlan #2 style system with two transmit antennas operating in a NLOS indoor environment. The analysis shows that an additional overhead of 500% is required for the candidate system compared to a single antenna system. It is also shown that by employing differential modulation the channel estimation overhead can be eliminated with significant performance improvement compared to a system employing a practical channel estimation scheme. This novel combination, termed ‘differentially modulated cyclic delay diversity, is shown to yield a highly spectral efficient, yet simple transmit diversity solution for multi-carrier transmissions.
Citation:
Allen, B., Said, F., Bauch, G., Auer, G. and Aghvami, A.H. (2005) "Spectrally efficient transmit diversity scheme for differentially modulated multicarrier transmissions," Communications, IEE Proceedings- , vol.152, no.4, pp. 457- 462, Aug 2005
Publisher:
IET
Journal:
IEE Proceedings - Communications
Issue Date:
Aug-2005
URI:
http://hdl.handle.net/10547/270796
DOI:
10.1049/ip-com:20040962
Additional Links:
http://digital-library.theiet.org/content/journals/10.1049/ip-com_20040962
Type:
Article
Language:
en
ISSN:
1350-2425
Appears in Collections:
Centre for Wireless Research (CWR)

Full metadata record

DC FieldValue Language
dc.contributor.authorAllen, Benen_GB
dc.contributor.authorSaid, F.en_GB
dc.contributor.authorBauch, G.en_GB
dc.contributor.authorAuer, G.en_GB
dc.contributor.authorAghvami, A.Hamiden_GB
dc.date.accessioned2013-03-01T09:53:25Z-
dc.date.available2013-03-01T09:53:25Z-
dc.date.issued2005-08-
dc.identifier.citationAllen, B., Said, F., Bauch, G., Auer, G. and Aghvami, A.H. (2005) "Spectrally efficient transmit diversity scheme for differentially modulated multicarrier transmissions," Communications, IEE Proceedings- , vol.152, no.4, pp. 457- 462, Aug 2005en_GB
dc.identifier.issn1350-2425-
dc.identifier.doi10.1049/ip-com:20040962-
dc.identifier.urihttp://hdl.handle.net/10547/270796-
dc.description.abstractCyclic delay diversity is a simple, yet effective, transmit diversity scheme for multicarrier based transmissions employing coherent digital linear modulation schemes. It is shown that, for satisfactory operation, the scheme requires additional channel estimation overhead compared to single antenna and traditional space–time coded transmissions owing to the inherent increase in frequency selective fading. The authors analyse the additional channel estimation overhead requirement for a Hiperlan #2 style system with two transmit antennas operating in a NLOS indoor environment. The analysis shows that an additional overhead of 500% is required for the candidate system compared to a single antenna system. It is also shown that by employing differential modulation the channel estimation overhead can be eliminated with significant performance improvement compared to a system employing a practical channel estimation scheme. This novel combination, termed ‘differentially modulated cyclic delay diversity, is shown to yield a highly spectral efficient, yet simple transmit diversity solution for multi-carrier transmissions.en_GB
dc.language.isoenen
dc.publisherIETen_GB
dc.relation.urlhttp://digital-library.theiet.org/content/journals/10.1049/ip-com_20040962en_GB
dc.rightsArchived with thanks to IEE Proceedings - Communicationsen_GB
dc.subjectcommunication channel equalisation and identificationen_GB
dc.subjectsingle antennasen_GB
dc.subjectcodesen_GB
dc.subjectradio links and equipmenten_GB
dc.titleSpectrally efficient transmit diversity scheme for differentially modulated multicarrier transmissionsen
dc.typeArticleen
dc.identifier.journalIEE Proceedings - Communicationsen_GB
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