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Quasi-Orthogonal Space-Frequency Block Codes for MIMO OFDM Channels
<span title="">2006</span>
<i title="IEEE">
<a target="_blank" rel="noopener" href="https://fatcat.wiki/container/jtcdcetsmvdmjcshq24lhzakwu" style="color: black;">2006 IEEE International Conference on Communications</a>
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In this paper, we propose a novel class of Space-Frequency and Space-Time-Frequency block codes based on Quasi-Orthogonal designs, over a frequency selective Rayleigh fading channel. The proposed codes are able to achieve rate one and full diversity by exploiting the space and multipath diversity gains available in the MIMO-OFDM channel. As the simulation results show, our codes outperform the existing Space-Frequency block codes in terms of bit error rate performance. Additionally, the
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... Space-Time-Frequency code benefits from a reduced maximum likelihood decoding complexity, which is a huge simplification compared to the existing codes. We also discuss the conditions under which the maximum likelihood decoding for our proposed Quasi-Orthogonal Space-Frequency code is simplified as well.
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