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On-line Access: 2018-05-07

Received: 2017-12-11

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Frontiers of Information Technology & Electronic Engineering  2018 Vol.19 No.3 P.357-366

http://doi.org/10.1631/FITEE.1700827


Non-ideal space division multiple access and its application


Author(s):  Ji-ying Xiang

Affiliation(s):  ZTE Corporation, Shenzhen 518054, China

Corresponding email(s):   xiang.jiying@zte.com.cn

Key Words:  Fifth generation (5G), Condition number, Channel reciprocity, Feedback mode, Non-feedback mode


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

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doi="10.1631/FITEE.1700827"
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A1 - Ji-ying Xiang
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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.

非理想条件下空分复用研究与应用

概要: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。

关键词:第五代移动通讯;条件数;信道互易性;信道反馈测量模式;信道非反馈式测量模式

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article

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