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- W2069048696 abstract "We propose a computationally efficient lattice reduction (LR) algorithm for multiple-input multiple-output (MIMO) orthogonal frequency division multiplexing (OFDM) systems in frequency-selective fading channels. In our proposed algorithm, we exploit the inherent feature of unimodular transformation matrix P that remains the same for frequency components which have relatively high amplitude correlation. We eliminate the redundant calculations by reducing brute-force LR iterations among adjacent subcarriers. We simulate the error performance and complexity of the proposed algorithm under various MIMO-OFDM system configurations. The results demonstrate that the proposed algorithm could significantly reduce the LR complexity by up to 90% multiplications and 99% divisions of brute-force LR while maintaining the system performance." @default.
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- W2069048696 date "2010-10-01" @default.
- W2069048696 modified "2023-09-27" @default.
- W2069048696 title "Computationally efficient lattice reduction for MIMO-OFDM systems" @default.
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- W2069048696 doi "https://doi.org/10.1109/wimob.2010.5645056" @default.
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