Paper Abstract and Keywords |
Presentation |
2015-04-17 13:00
Inter-user Interference Suppression with Null-Space Extension in Multiuser Massive MIMO for Time Varying Channel Tatsuhiko Iwakuni, Kazuki Maruta, Atsushi Ohta, Yushi Shirato, Takuto Arai, Masataka Iizuka (NTT) RCS2015-17 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
This paper proposes a new IUI suppression technique named “Null-Space Extension” with Massive MIMO in time varying channel environments. Massive MIMO usually uses the degrees of freedom of the base station antenna array to obtain the beamforming gain. The null-space extension uses the degrees to generate some additional null points, expands the dimension of the null space. Effectively suppression of IUI can be realized by using the current and the predicted CSI. In this paper, we evaluate the performance of null-space extension by computer simulation, and show its IUI suppression performance. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
Massive MIMO / Multiuser MIMO / Channel Time Variation / Null-Space Extension / / / / |
Reference Info. |
IEICE Tech. Rep., vol. 115, no. 2, RCS2015-17, pp. 89-94, April 2015. |
Paper # |
RCS2015-17 |
Date of Issue |
2015-04-09 (RCS) |
ISSN |
Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 |
Copyright and reproduction |
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RCS2015-17 |
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