大规模MIMO系统研究进展

发布时间：2018-02-28 23:28

本文关键词： 大规模MIMO 大规模天线阵列第五代移动通信频谱效率能量效率　出处：《数据采集与处理》2015年03期 　论文类型：期刊论文

【摘要】：随着无线通信技术的快速发展和智能手机的迅速普及,人们对数据传输速率提出了更高的需求。为进一步提高数据传输速率,通过增加基站天线数目构建大规模MIMO系统,是一种高效而相对便捷的方式。大规模MIMO系统能深度发掘空间维的自由度,使得基站能够利用同一时频资源服务于多个用户。本文探讨了大规模MIMO系统的导频污染问题及解决方案、适用于大规模MIMO系统的信道模型以及低复杂度的传输技术与实现方法三项关键技术。与现有MIMO系统相比,大规模MIMO系统能显著提高频谱效率、能量效率和系统的鲁棒性能。作为第五代移动通信(5G)最具潜力的研究内容之一,大规模MIMO无线通信技术已引起国内外的广泛关注,但相关研究工作尚处在起步阶段,还有大量的技术难点需要进一步突破。
[Abstract]:With the rapid development of wireless communication technology and the rapid popularization of smart phones, people put forward a higher demand for data transmission rate. In order to further improve the data transmission rate, a large-scale MIMO system is constructed by increasing the number of base station antennas. Is an efficient and relatively convenient way. Large scale MIMO systems can explore the degree of freedom of spatial dimension in depth. So that the base station can use the same time-frequency resources to serve multiple users. In this paper, the pilot pollution problem of large-scale MIMO system and its solution are discussed. The channel model for large-scale MIMO systems and the low complexity transmission techniques and implementation methods are three key technologies. Compared with existing MIMO systems, large-scale MIMO systems can significantly improve the spectral efficiency. Energy efficiency and robust performance of the system. As one of the most potential research contents of the fifth generation mobile communication, large-scale MIMO wireless communication technology has attracted wide attention at home and abroad, but the related research work is still in its infancy. There are still a large number of technical difficulties need further breakthrough.
【作者单位】：东南大学信息科学与工程学院;
【基金】：国家自然科学基金(61302097)资助项目教育部博士点基金(20120092120014)资助项目
【分类号】：TN919.3

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