4G technologies are focused on delivering high level throughput by using MIMO technology and wider signal bandwidth. To evaluate the MIMO system performance highly related to the accurate representation of the channel condition, over-the-air (OTA) test is performed with a channel emulator as an important part. In this paper, a channel emulator for wideband MIMO system is designed. Compressed sensing is used to sample analog signals as the bandwidth becomes wider. Frequency domain approaches are used to implement the emulator to reduce complexity for higher order arrays.
XIONG Yan-wei, ZHANG Jian-hua, ZHANG Ping
. Design of Channel Emulator for Wideband MIMO Systems[J]. Journal of Applied Sciences, 2014
, 32(3)
: 229
-236
.
DOI: 10.3969/j.issn.0255-8297.2014.03.002
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