On the use of Quasi-orthogonal space-time-frequency codes in MB-OFDM UWB

Authors

Le Chung Tran, University of Luebeck, GermanyFollow
Alfred Mertins, University of Luebeck, GermanyFollow

RIS ID

30502

Publication Details

Tran, L. C. & Mertins, A. (2008). On the use of Quasi-orthogonal space-time-frequency codes in MB-OFDM UWB. 2nd IEEE International Conference on Communications and Electronics (ICCE 2008) (pp. 252-257). Hoi An City, Vietnam: IEEE.

Abstract

Space-Time-Frequency Codes (STFCs), which haverecently been proposed in the literature for Multiband OFDMUltra-Wideband (MB-OFDM UWB) systems to improve thesystem capacity, error performance and wireless communicationrange, are all constructed based on orthogonal structures. Thispaper examines the application of Quasi-Orthogonal STFCs(QOSTFCs) to enhance further either data rate or error performancein the recently proposed STFC MB-OFDM UWB systems.It will be shown that QOSTFCs can provide significantly bettererror performance, compared to the conventional MB-OFDMUWB (without STFCs) as well as to the Orthogonal STFCs(OSTFCs) of the same order, at the same data rate, withoutincreasing the total transmission power. Equivalently, QOSTFCscan provide higher data rates with the same error performance,compared to OSTFCs.