基于多径的双极化信道信息反馈方法
发布时间：2019-04-10 18:18
【摘要】：天线部署空间限制和信道信息精度是影响大规模天线性能的重要因素,双极化天线能够有效地减少天线尺寸,在有限的空间内部署更多的天线,成为了大规模天线部署时的主流选择.但是由于信道的维度较大,目前,反馈技术面临码本中码字数目巨大、设计困难的问题,并且同时导致反馈开销大以及码字选择计算复杂度高.本文提出了一种新的基于多径的双极化信道反馈方法,这种方法仅仅需要少量的长周期宽带反馈的多径方向和幅度信息,结合一些短周期子带反馈的相位合并信息即可获得更加精确的预编码.结果表明这种方法能够有效地提高量化反馈效率并降低终端侧复杂度.
[Abstract]:The space limit of antenna deployment and the accuracy of channel information are the important factors that affect the performance of large-scale antenna. The dual-polarization antenna can effectively reduce the size of antenna and deploy more antennas in limited space. It has become the main choice for large-scale antenna deployment. However, due to the large dimension of the channel, the feedback technology is faced with the problems of huge number of codewords in codebook, difficult design, and high feedback overhead and high computational complexity of codeword selection at the same time. In this paper, a novel multipath-based dual-polarization channel feedback method is proposed, which requires only a small amount of multipath direction and amplitude information of long-period broadband feedback. More accurate precoding can be obtained by combining some short-period subband feedback phase merging information. The results show that this method can effectively improve the quantization feedback efficiency and reduce the end-side complexity.
【作者单位】： 北京邮电大学网络体系架构与融合北京市重点实验室;中兴通讯股份有限公司;
【基金】：国家八六三计划项目(2014AA01A706)
【分类号】：TN92
[Abstract]:The space limit of antenna deployment and the accuracy of channel information are the important factors that affect the performance of large-scale antenna. The dual-polarization antenna can effectively reduce the size of antenna and deploy more antennas in limited space. It has become the main choice for large-scale antenna deployment. However, due to the large dimension of the channel, the feedback technology is faced with the problems of huge number of codewords in codebook, difficult design, and high feedback overhead and high computational complexity of codeword selection at the same time. In this paper, a novel multipath-based dual-polarization channel feedback method is proposed, which requires only a small amount of multipath direction and amplitude information of long-period broadband feedback. More accurate precoding can be obtained by combining some short-period subband feedback phase merging information. The results show that this method can effectively improve the quantization feedback efficiency and reduce the end-side complexity.
【作者单位】： 北京邮电大学网络体系架构与融合北京市重点实验室;中兴通讯股份有限公司;
【基金】：国家八六三计划项目(2014AA01A706)
【分类号】：TN92
【相似文献】
相关期刊论文 前10条
1 潘雪明,王泽美,焦永昌;一种槽耦合的双频双极化微带天*线[J];雷达科学与技术;2005年04期
2 康雪姣;张金生;;一种双频双极化3G天线的研究[J];微计算机信息;2008年32期
3 金擰民;;利用煇卡，
本文编号：2456017
本文链接：https://www.wllwen.com/kejilunwen/xinxigongchenglunwen/2456017.html
