非理想条件下空分复用研究与应用

向际鹰

doi:10.1631/FITEE.1700827

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非理想条件下空分复用研究与应用

5G无线通信系统与技术专题 | Updated：2022-05-19

- 非理想条件下空分复用研究与应用
- Non-ideal space division multiple access and its application
- 信息与电子工程前沿（英文） 2018年19卷第3期页码：357-366
- Affiliations：
  
  ZTE Corporation, Shenzhen 518054, China
- Author bio：
  
  Ji-ying XIANG, E-mail: xiang.jiying@zte.com.cn
- Funds：
- DOI：10.1631/FITEE.1700827
  中图分类号： TN802
- 收稿：2017-12-11，
  
  修回：2018-;3-12，
  
  纸质出版：2018-03
- Accepted：
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向际鹰. 非理想条件下空分复用研究与应用[J]. 信息与电子工程前沿（英文）, 2018,19(3):357-366.

Ji-ying XIANG. Non-ideal space division multiple access and its application[J]. Frontiers of Information Technology & Electronic Engineering, 2018, 19(3): 357-366.
向际鹰. 非理想条件下空分复用研究与应用[J]. 信息与电子工程前沿（英文）, 2018,19(3):357-366. DOI： 10.1631/FITEE.1700827.

Ji-ying XIANG. Non-ideal space division multiple access and its application[J]. Frontiers of Information Technology & Electronic Engineering, 2018, 19(3): 357-366. DOI： 10.1631/FITEE.1700827.

摘要

对空分复用技术中的非理想因素进行了理论分析，并探讨了在上述非理想工程条件下空分复用的应用，给出了实测数据。对于信道条件非理想的场景，即多通道之间相关性高，条件数大，导致高层间干扰，需要通过最优化用户匹配和降维达到最优容量。对于信道测量非理想的场景，深入分析了反馈式和非反馈式的优劣，并指出即使信道不满足互易性条件，非反馈式也是优选方法。针对上述问题，进行了理论分析和外场实测。

Abstract

We study the performance of space division multiple access (SDMA) under a non-ideal engineering situation. When the SDMA channel is of high inter-layer correlation and the condition number is large

the multiple user multiple input and multiple output user equipment (MUMIMOUE) grouping should be optimized

and in some cases further dimension-reduction should be applied. As the channel measuring is always non-ideal

we use two methods

feedback mode and non-feedback mode

in terms of performance and overhead. It is proposed that the non-feedback mode is preferable even for some non-reciprocal channels. Principle analysis and test results are given.

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