Title :
Effect of vertical angle spread of propagation channel on MIMO OTA measurement method
Author :
Obayashi, Shuichi ; Ohishi, Takafumi ; Karasawa, Yoshio
Author_Institution :
Corp. R&D Center, Toshiba Corp., Kawasaki, Japan
Abstract :
Various OTA (over-the-air) measurement systems have been proposed and discussed for the evaluation of MIMO wireless communication devices. The spatial channel emulators, which is a typical MIMO OTA measurement method, usually assume only the horizontal angle spread of multipath radio propagation channel. In this report, the effect of vertical angle spread of propagation channel on MIMO OTA measurement is evaluated by the simulation based on the model of vertical and horizontal angle spread. The simulation result shows that the vertical angle spread has a substantial effect on antenna correlation and thus MIMO transmission performance. The need of emulation of vertical angle spread in the typical spatial channel emulators for MIMO OTA measurement is obviously inferred from the result.
Keywords :
MIMO communication; antennas; multipath channels; radiowave propagation; wireless channels; MIMO OTA measurement; MIMO transmission performance; MIMO wireless communication device; antenna correlation; horizontal angle spread; multipath radio propagation channel; over-the-air measurement system; spatial channel emulator; vertical angle spread; Antenna measurements; Antennas; Correlation; MIMO; Wireless communication; Writing; Antenna measurements; Land mobile radio cellular systems; Land mobile radio propagation factor; MIMO systems; Transceivers;
Conference_Titel :
Microwave Conference Proceedings (APMC), 2010 Asia-Pacific
Conference_Location :
Yokohama
Print_ISBN :
978-1-4244-7590-2
Electronic_ISBN :
978-1-902339-22-2
