Abstract
This paper proposes a practical channel estimation scheme for downlink 60GHz indoor systems with the massive uniform rectangular array (URA) at base station (BS). Through array signal processing theory, the parameter of each channel
path can be decomposed into the angular information and the channel gain information that can be estimated separately. We first prove that the 2-dimensional Discrete Fourier transform (2D-DFT) can be applied to efficiently estimate the angular information. Then, the channel gain information could be easily obtained with small amount of training resources in a linear manner. Interestingly, since uplink and the downlink angular information is reciprocal, the proposed method applicable for both TDD and FDD systems. Simulation results are provided to corroborate the proposed studies.
path can be decomposed into the angular information and the channel gain information that can be estimated separately. We first prove that the 2-dimensional Discrete Fourier transform (2D-DFT) can be applied to efficiently estimate the angular information. Then, the channel gain information could be easily obtained with small amount of training resources in a linear manner. Interestingly, since uplink and the downlink angular information is reciprocal, the proposed method applicable for both TDD and FDD systems. Simulation results are provided to corroborate the proposed studies.
| Original language | English |
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| Title of host publication | IEEE Proceedings of ICC'2017 |
| Publisher | IEEE |
| DOIs | |
| Publication status | Accepted/In press - May 2017 |