Summary
International Symposium on Antennas and Propagation
2012
Session Number:3A2
Session:
Number:3A2-5
Comparison of 4x1 SIMO and 2x2 MIMO Sensors Based on Measured Propagation Channels
Keita Ushiki, Kentaro Nishimori, Naoki Honma,
pp.-
Publication Date:2012/10/29
Online ISSN:2188-5079
Summary:
High-speed transmission technologies using array signal processing such as Single Input Multiple Output/ Multiple Input Multiple Output (SIMO/MIMO) have been recently attracted much attention due to smart phones and wireless LAN systems. High data transmission can be realized by utilizing accurate channel state information(CSI). However, it is well known that the characteristic of SIMO/MIMO performance is severely degraded by variation of the propagation channel. In this paper, we take advantage of the feature that the achievable bit rate of SIMO/MIMO transmission is degraded in the time variant channel. An indoor intruder detection method using the SIMO channel is proposed. We proposed an intruder detection method which utilizes channel matrix in Multiple Input Multiple Output (MIMO) channels, in order to enhance conventional detection performance. We call this method as MIMO Sensor. In this paper we evaluate the detection performance of SIMO/MIMO sensors which have same number of channel responses. : 4�~1 SIMO and 2�~2 MIMO. 2�~2 MIMO sensors is shown to be effective compared to 4�~1 SIMO sensor when the element spacing is very narrow. It is verified that the detection probability by SIMO sensor is affected by position of transmit antennas and measurement courses while the performance is not changed by MIMO sensor regardless of measured courses.