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Frontiers of Information Technology & Electronic Engineering
ISSN 2095-9184 (print), ISSN 2095-9230 (online)
2018 Vol.19 No.3 P.357-366
Non-ideal space division multiple access and its application
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.
Key words: Fifth generation (5G), Condition number, Channel reciprocity, Feedback mode, Non-feedback mode
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DOI:
10.1631/FITEE.1700827
CLC number:
TN802
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On-line Access:
2018-05-07
Received:
2017-12-11
Revision Accepted:
2018-03-01
Crosschecked:
2018-03-12