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中文摘要：
在这个字母，我们在场为多重输入的多重产量的广播隧道的一个修改向量不安 precoding 计划，在不安向量被选择到的地方即时力量和即时山峰播送信号驱动的估计。这不安向量被使用最靠近的点搜索获得，在格子减小算法的帮助下。模拟结果证明建议计划在功效， peak-to-average 力量比率减小，和复杂性之中产出折衷。
英文摘要：
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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