STC-MIMO Block Spread OFDM in Frequency Selective Rayleigh Fading Channels

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Show simple item record Chicharo, Joe. en_AU Dutkiewicz, Eryk. en_AU Tran, Le Chung. en_AU Huang, Xiaojing. en_AU 2007-03-12T22:05:44Z 2012-12-15T02:29:38Z 2007-03-12T22:05:44Z 2012-12-15T02:29:38Z 2007-03-12T22:05:44Z
dc.description.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. en_AU
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dc.format.mimetype application/pdf
dc.language.iso en_AU
dc.title STC-MIMO Block Spread OFDM in Frequency Selective Rayleigh Fading Channels en_AU
utslib.copyright.status Open Access

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