Abstract
Space limitation and multi-antenna channel acquisition prevent Massive multiple-input multiple-output (MIMO) from being easily deployed. The use of multi-polarized antennas can be one solution to alleviate the first obstacle. Furthermore, the dual structured precoding, in which a preprocessing based on the spatial correlation and a subsequent linear precoding based on the short-term channel state information at the transmitter (CSIT) are concatenated, can reduce the feedback overhead efficiently. To reduce the feedback overhead further, we propose a dual structured multi-user linear precoding, in which the subgrouping method based on co-polarization is additionally applied to the spatially grouped mobile stations (MSs) in the preprocessing stage. By investigating the behavior of the asymptotic performance as a function of the cross-polar discrimination (XPD) parameter, we also propose a new dual structured precoding, in which the XPD, spatial correlation, and CSIT quality are jointly utilized in the precoding/feedback for the multi-polarized multi-user massive MIMO system.
Original language | English |
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Title of host publication | 2014 Proceedings of the 22nd European Signal Processing Conference, EUSIPCO 2014 |
Publisher | European Signal Processing Conference, EUSIPCO |
Pages | 326-330 |
Number of pages | 5 |
ISBN (Electronic) | 9780992862619 |
Publication status | Published - 2014 Nov 10 |
Event | 22nd European Signal Processing Conference, EUSIPCO 2014 - Lisbon, Portugal Duration: 2014 Sept 1 → 2014 Sept 5 |
Publication series
Name | European Signal Processing Conference |
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ISSN (Print) | 2219-5491 |
Other
Other | 22nd European Signal Processing Conference, EUSIPCO 2014 |
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Country/Territory | Portugal |
City | Lisbon |
Period | 14/9/1 → 14/9/5 |
Bibliographical note
Publisher Copyright:© 2014 EURASIP.
Keywords
- Dual structured precoding with long-term/short-term CSIT
- Multi-polarized Massive MIMO
ASJC Scopus subject areas
- Signal Processing
- Electrical and Electronic Engineering