Abstract
In this paper, we focus on the problem of joint direction-of-departure (DOD) and two-dimensional (2D) direction-of-arrival (DOA) estimation in massive multiple-input multiple-output (MIMO) systems. A novel method for angle estimation is proposed with automatic pairing. The method transforms the element space into the beamspace by employing the property of conjugate centrosymmetric array, such that the angle estimation operates only on the real-valued computation. Then, we utilize the real-valued rotational invariance relationships in beamspace to estimate DOD and 2D DOA in a fresh fashion. Numerical results show that the proposed algorithm provides reduced computational complexity without the loss of estimation accuracy owing to real-valued processing, automatic pairing and computation dimension reduction in massive MIMO systems.
This work was supported in part by Ericsson and by the National Natural Science Foundation of China under Grant No. 61371075.
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© 2018 ICST Institute for Computer Sciences, Social Informatics and Telecommunications Engineering
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Zhou, Y., Ji, X., Dai, M. (2018). Joint Direction-of-Departure and Two-Dimensional Direction-of-Arrival Estimation with Automatic Pairing in Massive MIMO Systems. In: Li, B., Shu, L., Zeng, D. (eds) Communications and Networking. ChinaCom 2017. Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering, vol 236. Springer, Cham. https://doi.org/10.1007/978-3-319-78130-3_4
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DOI: https://doi.org/10.1007/978-3-319-78130-3_4
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