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多天线空时预编码技术利用信道状态信息能够有效地改善无线通信系统性能与吞吐量,成为未来无线移动通信领域研究的热点。根据发射端利用信道状态信息情况,预编码技术可分为完全信道预编码技术和部分信道预编码技术。文章主要研究了多用户MIMO多载波无线通信系统中空时预编码技术,研究了多用户MIMO多载波系统中空时预编码技术,文中还重点对基于码本的多用户MIMO预编码进行了研究。
Multi-antenna space-time precoding technique using channel state information can effectively improve the performance and throughput of wireless communication systems and become the hotspot in the field of wireless mobile communication in the future. According to the use of channel state information at the transmitting end, precoding techniques can be divided into full channel precoding techniques and partial channel precoding techniques. This paper mainly studies the space-time precoding techniques in multi-user MIMO multicarrier wireless communication systems, and studies the space-time precoding techniques in multi-user MIMO multicarrier systems. The paper also focuses on the multi-user MIMO precoding based on codebooks.