【摘要】 在3D-MIMO系统中,基站端部署的天线数量会大量增加;如果继续按照以往的信道估计方法为每一根发射天线都配置导频,则会带来极大的导频开销问题,导致大量的资源消耗;因此,如何在减少导频开销的前提下完成信道估计就成为3D MIMO系统面临的关键问题。文章在研究现有的信道估计方法基础上,结合阵列天线相关性提出在特定场景下的基于天线相关性的信道估计方法并通过仿真验证了该方法的性能。更多还原

【Abstract】 In the 3D-MIMO system, the number of antennas deployed will be greatly increased at the base station. If we continue to use the previous channel estimation method for each transmit antenna, it will lead to a great pilot overhead problem, which leads to a large amount of resource consumption. So how to complete the channel estimation on the premise of reducing the pilot overhead becomes the key problem of the 3D-MIMO system. On the basis of studying the existing channel estimation methods, this paper proposes a channel estimation method based on antenna correlation in certain scenarios, and the performance of the proposed method is verified by simulation.更多还原