STC-MIMO block spread OFDM in frequency selective rayleigh fading channels

Le Chung Tran*, Xiaojing Huang, Eryk Dutkiewicz, Joe Chicharo

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contribution

7 Citations (Scopus)

Abstract

In this paper, we expand the idea of spreading the transmitted symbols in OFDM systems by unitary spreading matrices based on the rotated Hadamard or rotated Discrete Fourier Transform (DFT) matrices proposed in the literature to apply to Space-Time Coded Multiple-Input Multiple-Output OFDM (STC-MIMO-OFDM) systems. We refer the resulting systems to as STC-MIMO Block Spread OFDM (STC-MIMO-BOFDM) systems. In the proposed systems, a multi-dimensional diversity, including time, frequency, space and modulation diversities, can be used, resulting in better bit error performance in frequency selective Rayleigh fading channels compared to the conventional OFDM systems with or without STCs. Simulations carried out with the Alamouti code confirm the advantage of the proposed STC-MIMO-BOFDM systems.

Original languageEnglish
Title of host publicationProceedings - 11th IEEE Symposium on Computers and Communications, ISCC 2006
EditorsPaolo Bellavista, Chi-Ming Chen, Antonio Corradi, Mahmoud Daneshmand
Place of PublicationWollongong, NSW
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Pages277-282
Number of pages6
ISBN (Print)0769525881, 9780769525884
DOIs
Publication statusPublished - 2006
Event11th IEEE Symposium on Computers and Communications, ISCC 2006 - Cagliari, Sardinia, Italy
Duration: 26 Jun 200629 Jun 2006

Other

Other11th IEEE Symposium on Computers and Communications, ISCC 2006
CountryItaly
CityCagliari, Sardinia
Period26/06/0629/06/06

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