{"id":7780,"date":"2022-10-02T09:56:23","date_gmt":"2022-10-02T00:56:23","guid":{"rendered":"https:\/\/www11.ieice.org\/cs\/ap\/wp\/?page_id=7780"},"modified":"2026-06-25T15:31:53","modified_gmt":"2026-06-25T06:31:53","slug":"prop_db_7","status":"publish","type":"page","link":"https:\/\/www.ieice.org\/cs\/ap\/language\/en\/misc-eng\/denpan-db\/prop_db\/prop_db_7\/","title":{"rendered":"7. Characteristics of 2x2MIMO propagation channel in an indoor environment."},"content":{"rendered":"\n

Database<\/h3>\n\n\n\n
No.<\/td>Contents<\/td>Data type<\/td>Location<\/td>Date of registration<\/td>Registrant<\/td><\/tr>
7<\/td>Average received SNR, CSI, and channel capacity of 2×2 MIMO propagation channel<\/td>Measurement<\/td>202, Bld. A, Faculty of Engineering, Niigata Univ., Japan<\/td>Oct. 3rd 2022<\/td>Secretary of Propagation Research Promotion committee (formerly Propagation DB committee)
(Data provision : K. Nishimori (Niigata Univ.))<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Parameters<\/h4>\n\n\n\n
Parameter<\/strong><\/td>Value<\/strong><\/td><\/tr>
Size of evaluation area<\/td>7.5 m x 6.2 m x 2.6 m<\/td><\/tr>
Center Frequency<\/td>2.452 GHz<\/td><\/tr>
Transmission power<\/td>-5 dBm<\/td><\/tr>
Number of subcarriers<\/td>56<\/td><\/tr>
Subcarrier spacing<\/td>78.75 kHz<\/td><\/tr>
Transmission point<\/td>(x,\uff59) = (6.75\uff0c2.75) (m)
(See floor plan of measurement area) <\/td><\/tr>
Transmission antenna height<\/td>1.2 m<\/td><\/tr>
Transmission antenna<\/td>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.<\/td><\/tr>
Number of received evaluation poionts<\/td>(1) Average received SNR : 64
(2) CSI (Channel State Information) : 6
(3) Channel capacity : 64
(See floor plan of measurement area) <\/td><\/tr>
Reception antenna height<\/td>1.2 m<\/td><\/tr>
Reception antenna<\/td>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.<\/td><\/tr>
Data<\/td>(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.
<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Overview<\/h3>\n\n\n\n

Structure of measurement site (Expanded diagram)<\/h5>\n\n\n
\n
\"\"<\/figure><\/div>\n\n\n
<\/div>\n\n\n\n
Measurement point<\/h5>\n\n\n
\n
\"\"<\/figure><\/div>\n\n\n
<\/div>\n\n\n\n
(1) Average SNR<\/h5>\n\n\n
\n
\"\"<\/figure><\/div>\n\n\n
<\/div>\n\n\n\n
(2) CSI (Channel State Information)<\/h5>\n\n\n
\n
\"\"<\/figure><\/div>\n\n\n
<\/div>\n\n\n\n
(3) Channel capacity<\/h5>\n\n\n
\n
\"\"<\/figure><\/div>\n\n\n

Conditions of data use<\/h3>\n\n\n\n

Cite the following paper.<\/p>\n\n\n\n[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).<\/a><\/p>\n\n\n\n Click hear to access data<\/span><\/a>\n\n\n\n

(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<\/a>.) <\/p>\n","protected":false},"excerpt":{"rendered":"

Database No. Contents Data type Location Date of registration Registrant 7 Average received SNR, CSI, and chan […]<\/p>\n","protected":false},"author":5,"featured_media":0,"parent":15718,"menu_order":7,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"class_list":["post-7780","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.ieice.org\/cs\/ap\/wp-json\/wp\/v2\/pages\/7780","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ieice.org\/cs\/ap\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.ieice.org\/cs\/ap\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.ieice.org\/cs\/ap\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ieice.org\/cs\/ap\/wp-json\/wp\/v2\/comments?post=7780"}],"version-history":[{"count":23,"href":"https:\/\/www.ieice.org\/cs\/ap\/wp-json\/wp\/v2\/pages\/7780\/revisions"}],"predecessor-version":[{"id":15668,"href":"https:\/\/www.ieice.org\/cs\/ap\/wp-json\/wp\/v2\/pages\/7780\/revisions\/15668"}],"up":[{"embeddable":true,"href":"https:\/\/www.ieice.org\/cs\/ap\/wp-json\/wp\/v2\/pages\/15718"}],"wp:attachment":[{"href":"https:\/\/www.ieice.org\/cs\/ap\/wp-json\/wp\/v2\/media?parent=7780"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}