| Issue |
MATEC Web Conf.
Volume 139, 2017
2017 3rd International Conference on Mechanical, Electronic and Information Technology Engineering (ICMITE 2017)
|
|
|---|---|---|
| Article Number | 00196 | |
| Number of page(s) | 5 | |
| DOI | https://doi.org/10.1051/matecconf/201713900196 | |
| Published online | 05 December 2017 | |
Research on I / Q Unbalanced Channel Reciprocity Calibration Algorithm in Massive MIMO System
1 Beijing Key Laboratory of Network System Architecture and Convergence, Beijing University of Posts and Telecommunications, 100876, Beijing, China
2 School of Computer Science, Beijing University of Posts and Telecommunications, 100876, Beijing, China
* Corresponding author: yinl@bupt.edu.cn
Massive MIMO system uses the transmitter channel state information (CSI) to preprocess the transmitted data, which can effectively reduce the interference and enhance the Massive MIMO system capacity. In the actual transmission process, reciprocity is subject to many factors, resulting in application difficulties. In this paper, we mainly study the influence of RF device’s noncardiosis on channel reciprocity of Massive MIMO system. Combined with channel estimation based on pilot signal and FRRH subspace tracking algorithm, this paper proposes a channel reciprocity calibration method for Massive MIMO. Finally, the compensation effect of the compensation algorithm is verified by simulation.
© The Authors, published by EDP Sciences, 2017
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (http://creativecommons.org/licenses/by/4.0/).
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