期刊
IEEE WIRELESS COMMUNICATIONS LETTERS
卷 8, 期 1, 页码 45-48出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LWC.2018.2850900
关键词
mmWave massive MIMO; direction of arrival (DOA); spatial basis expansion model (SBEM)
资金
- National Key Research and Development Program of China [2017YFE011230]
- National Natural Science Foundation of China [61471221]
In this letter, an angle domain off-grid channel estimation algorithm for the uplink millimeter wave (mm Wave) massive multiple-input and multiple-output systems is proposed. By exploiting spatial sparse structure in mmWave channels, the proposed method is capable of identifying the angles and gains of the scatterer paths. Comparing the conventional channel estimation methods for mmWave systems, the proposed method achieves better performance in terms of mean square error. Numerical simulation results are provided to verify the superiority of the proposed algorithm.
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