基于容量相关字典的5G毫米波大规模天线单元选择算法

发布时间：2018-04-14 01:28

本文选题：大规模天线系统 + 相关字典　；参考：《电子与信息学报》2017年12期

【摘要】：针对传统天线选择算法在大规模天线阵列应用中的局限性,该文在多用户场景下提出一种基于容量相关字典的5G毫米波大规模天线随机选择算法。该算法通过特定环境中不同位置处的多用户与基站的交互,快速提取大规模天线单元间容量的强弱相关特性,并建立相关字典;在天线选择时,先搜索最优信道容量单元连接射频链路,再随机选择相关字典中与最优单元容量相关大的天线单元接入其余射频链路。该方法大大降低了传统天线选择算法应用的复杂度,只与环境有关且较为稳定,当新用户加入时也无需重新建立相关字典。该方法通过损失一部分性能来换取较低的复杂度,适用于天线单元多的大规模天线阵列。此外,该文在室内开放式办公室开展了26 GHz视距和非视距下的大规模天线信道测试,分析了不同场景下的天线阵列行间单元间的容量相关性,并对该算法的系统信道容量性能进行了实验验证。
[Abstract]:Aiming at the limitation of traditional antenna selection algorithm in the application of large scale antenna array, this paper presents a 5G millimeter-wave random antenna selection algorithm based on capacity correlation dictionary in multi-user scenarios.Through the interaction between multi-users and base stations in different locations in a specific environment, the algorithm can quickly extract the strong and weak correlation characteristics of the capacity between large scale antenna units, and establish a correlation dictionary.First, the optimal channel capacity unit is searched to connect to the radio frequency link, and then the antenna unit which has a large correlation with the optimal unit capacity in the relevant dictionary is randomly selected to connect to the rest of the radio frequency link.The proposed method greatly reduces the complexity of the traditional antenna selection algorithm and is only environment-dependent and stable. When new users join in, there is no need to re-build the relevant dictionary.This method can reduce the complexity by losing part of the performance and is suitable for large antenna arrays with more antenna elements.In addition, in the indoor open office, the large scale antenna channel testing is carried out at 26 GHz horizon and non-horizon, and the capacity correlation between interline units of antenna array under different scenarios is analyzed.The performance of the system channel capacity of the algorithm is verified by experiments.
【作者单位】：华北电力大学电气与电子工程学院;中国电波传播研究所电波环境特性与模化技术国家重点实验室;电信科学技术研究院无线移动通信国家重点实验室;
【基金】：中国电波传播研究所电波环境特性与模化技术国防重点实验室基金(201600012) 电信科学技术研究院无线移动通信国家重点实验室基金(DTimo.15.094) 中央高校基金(2015XS19)~~
【分类号】：TN820

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