Database
| No. | Contents | Data type | Location | Date of registration | Registrant |
| 7 | Average received SNR, CSI, and channel capacity of 2×2 MIMO propagation channel | Measurement | 202, Bld. A, Faculty of Engineering, Niigata Univ., Japan | Oct. 3rd 2022 | Secretary of Propagation Research Promotion committee (formerly Propagation DB committee) (Data provision : K. Nishimori (Niigata Univ.)) |
Parameters
| Parameter | Value |
| Size of evaluation area | 7.5 m x 6.2 m x 2.6 m |
| Center Frequency | 2.452 GHz |
| Transmission power | -5 dBm |
| Number of subcarriers | 56 |
| Subcarrier spacing | 78.75 kHz |
| Transmission point | (x,ｙ) = (6.75，2.75) (m) (See floor plan of measurement area) |
| Transmission antenna height | 1.2 m |
| Transmission antenna | Sleeve dipole antenna (2 dBi) – 2 antennas with 0.5 wavelength interval. – Arranged along the y direction in floor plan of measurement area. – omnidirectional in horizontal plane, ‘figure 8’ directivity in vertical plane. |
| Number of received evaluation poionts | (1) Average received SNR : 64 (2) CSI (Channel State Information) : 6 (3) Channel capacity : 64 (See floor plan of measurement area) |
| Reception antenna height | 1.2 m |
| Reception antenna | Sleeve dipole antenna (2 dBi) – 2 antennas with 0.5 wavelength interval. – Arranged along the y direction in floor plan of measurement area. – omnidirectional in horizontal plane, ‘figure 8’ directivity in vertical plane. |
| Data | (1) Average received SNR (dB) : – SNR based on average power of 56 subcarriers and 2×2 channels. – Relative average SNR assuming an average SNR of 15 dB at position #1 in foor plan of measurement area. (2) CSI (Channel state Information) : – Complex magnitude for each elemnt of 2×2 MIMO channel for evry 56 subcarriers. – Relative value when the average power* at positon #1 in floor plan of measurement area sets to1. * Average power of 56 subcarriers and 2×2 channels. (3) Channel capacity (bits/s/Hz) : – 2×2 MIMO channel capacity calculated based on shannon and ZF (Zero Forcing) norm. |
Overview
Structure of measurement site (Expanded diagram)
Measurement point
(1) Average SNR
(2) CSI (Channel State Information)
(3) Channel capacity
Conditions of data use
Cite the following paper.
[1] Kentaro Nishimori, “On estimation of MIMO channel capacity using measurement data in indoor real propagation environment,” IEICE Technical rep., vol. 121, no. 330, AP2021-140, pp. 31–36, Jan. 2022 (in japanese). Click hear to access data(To access data, you need passcode. Please contact to the committee secretary. The contact mail address is shown in the top-page of the database.)
