Unitary differential space-time-frequency codes for MB-OFDM UWB

Tran, LC; Mertins, A; Dutkiewicz, E; Huang, X

Unitary differential space-time-frequency codes for MB-OFDM UWB

Tran, LC Mertins, A Dutkiewicz, E

Huang, X

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Publication Type:: Conference Proceeding
Citation:: 2009 9th International Symposium on Communications and Information Technology, ISCIT 2009, 2009, pp. 1161 - 1166
Issue Date:: 2009-12-01

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Field	Value	Language
dc.contributor.author	Tran, LC	en_US
dc.contributor.author	Mertins, A	en_US
dc.contributor.author	Dutkiewicz, E https://orcid.org/0000-0002-4268-9286	en_US
dc.contributor.author	Huang, X https://orcid.org/0000-0001-6869-5732	en_US
dc.date.issued	2009-12-01	en_US
dc.identifier.citation	2009 9th International Symposium on Communications and Information Technology, ISCIT 2009, 2009, pp. 1161 - 1166	en_US
dc.identifier.isbn	9781424445219	en_US
dc.identifier.uri	http://hdl.handle.net/10453/30964
dc.description.abstract	In a multiple-input multiple-output (MIMO) multiband orthogonal frequency division multiplexing (MB-OFDM) ultra-wideband (UWB) system, coherent detection where the channel state information (CSI) is assumed to be exactly known at the receiver requires the transmission of a large number of symbols for channel estimation, thus reducing the bandwidth efficiency. This paper examines the use of unitary differential space-time frequency codes (DSTFCs) in MB-OFDM UWB, which increases the system bandwidth efficiency due to the fact that no CSI is required for differential detection. The proposed DSTFC MB-OFDM system would be useful when the transmission of multiple channel estimation symbols is impractical or uneconomical. Simulation results show that the application of DSTFCs can significantly improve the bit error performance of conventional differential MB-OFDM system (without MIMO). ©2009 IEEE.	en_US
dc.relation.ispartof	2009 9th International Symposium on Communications and Information Technology, ISCIT 2009	en_US
dc.relation.isbasedon	10.1109/ISCIT.2009.5341104	en_US
dc.title	Unitary differential space-time-frequency codes for MB-OFDM UWB	en_US
dc.type	Conference Proceeding
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Electrical and Data Engineering
pubs.organisational-group	/University of Technology Sydney/Strength - GBDTC - Global Big Data Technologies
utslib.copyright.status	open_access
pubs.publication-status	Published	en_US

Abstract:

In a multiple-input multiple-output (MIMO) multiband orthogonal frequency division multiplexing (MB-OFDM) ultra-wideband (UWB) system, coherent detection where the channel state information (CSI) is assumed to be exactly known at the receiver requires the transmission of a large number of symbols for channel estimation, thus reducing the bandwidth efficiency. This paper examines the use of unitary differential space-time frequency codes (DSTFCs) in MB-OFDM UWB, which increases the system bandwidth efficiency due to the fact that no CSI is required for differential detection. The proposed DSTFC MB-OFDM system would be useful when the transmission of multiple channel estimation symbols is impractical or uneconomical. Simulation results show that the application of DSTFCs can significantly improve the bit error performance of conventional differential MB-OFDM system (without MIMO). ©2009 IEEE.

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