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《浙江大学学报(英文版)A辑:应用物理与工程》
>Science Letters:Peak-power reduction by the lattice-reduction-aided closest point search for MIMO broadcast channels
Science Letters:Peak-power reduction by the lattice-reduction-aided closest point search for MIMO broadcast channels
In this letter, we present a modified vector-perturbation precoding scheme for the multiple-input multiple-output broadcast channel, where a perturbation vector is chosen to take into account both the instantaneous power and the instantaneous peak power of the transmitted signal. This perturbation vector is obtained by using the closest point search, with the aid of the lattice-reduction algorithm. Simulation results show that the proposed scheme yields a tradeoff among power efficiency, peak-to-average power ratio reduction, and complexity.
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