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中文摘要：
传统TH预编码方案将所有的均衡工作放在发射端完成,没有充分发挥MIMO技术的优势。该文提出一种针对移动端多天线的TH预编码方案,用户之间的干扰消除由发射端完成,而用户之间多个流之间的干扰消除由各个用户自行完成。通过对信道矩阵进行块下三角分解并按速率最大准则进行功率注水,所提方案比传统单天线TH预编码方案有更高的速率。
英文摘要：
Traditional Tomlinson-Harashima Precoding （THP）, which leaves all the equalization tasks to the transmitter, prevent from fully utilizing the advantages of MIMO techniques. In this paper, a THP scheme for multiuser MIMO system is proposed. The inter-user interference is preequalized at transmitter, while the intra-user interference is equalized at each receiver. Through block lower triangular decomposition of channel matrix and waterfilling under throughput maximization criterion, the proposed scheme achieves much better sum rate performance when compared to traditional THP designed for single antenna system.
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