Database
No. | Contents | Data type | Location | Date of resistration | 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 DB comittee (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. |
Structure of measurement site
Expanded diagram
Floor plan of measurement area
Measurement points
Registered data
(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.)