DOA Estimation in B5G/6G: Trends and Challenges
Direction-of-arrival (DOA) estimation is the preliminary stage of communication, localiza-tion, and sensing. Hence, it is a canonical task for next-generation wireless communications, namely beyond 5G (B5G) or 6G communication networks. Both massive multiple-input multiple-output (MIMO) and millimet...
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Format: | Article |
Language: | English |
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MDPI
2022
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Online Access: | View Fulltext in Publisher |
LEADER | 02373nam a2200409Ia 4500 | ||
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001 | 10.3390-s22145125 | ||
008 | 220718s2022 CNT 000 0 und d | ||
020 | |a 14248220 (ISSN) | ||
245 | 1 | 0 | |a DOA Estimation in B5G/6G: Trends and Challenges |
260 | 0 | |b MDPI |c 2022 | |
856 | |z View Fulltext in Publisher |u https://doi.org/10.3390/s22145125 | ||
520 | 3 | |a Direction-of-arrival (DOA) estimation is the preliminary stage of communication, localiza-tion, and sensing. Hence, it is a canonical task for next-generation wireless communications, namely beyond 5G (B5G) or 6G communication networks. Both massive multiple-input multiple-output (MIMO) and millimeter wave (mmW) bands are emerging technologies that can be implemented to increase the spectral efficiency of an area, and a number of expectations have been placed on them for future-generation wireless communications. Meanwhile, they also create new challenges for DOA estimation, for instance, through extremely large-scale array data, the coexistence of far-field and near-field sources, mutual coupling effects, and complicated spatial-temporal signal sampling. This article discusses various open issues related to DOA estimation for B5G/6G communication networks. Moreover, some insights on current advances, including arrays, models, sampling, and algorithms, are provided. Finally, directions for future work on the development of DOA estimation are addressed. © 2022 by the authors. Licensee MDPI, Basel, Switzerland. | |
650 | 0 | 4 | |a 5G mobile communication systems |
650 | 0 | 4 | |a Array processing |
650 | 0 | 4 | |a array signal processing |
650 | 0 | 4 | |a Array signal processing |
650 | 0 | 4 | |a Communications networks |
650 | 0 | 4 | |a Direction of arrival |
650 | 0 | 4 | |a Direction of arrival estimation |
650 | 0 | 4 | |a DOA estimation |
650 | 0 | 4 | |a Emerging technologies |
650 | 0 | 4 | |a massive MIMO |
650 | 0 | 4 | |a Massive multiple-input multiple-output |
650 | 0 | 4 | |a Millimeter waves |
650 | 0 | 4 | |a Millimeter-wave band |
650 | 0 | 4 | |a MIMO systems |
650 | 0 | 4 | |a Multiple inputs |
650 | 0 | 4 | |a Multiple outputs |
650 | 0 | 4 | |a Next-generation wireless communications |
650 | 0 | 4 | |a Signal sampling |
650 | 0 | 4 | |a Spectral efficiencies |
650 | 0 | 4 | |a Spectrum efficiency |
700 | 1 | |a Ruan, N. |e author | |
700 | 1 | |a Shi, J. |e author | |
700 | 1 | |a Wang, H. |e author | |
700 | 1 | |a Wen, F. |e author | |
773 | |t Sensors |