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4x4 MIMO experimental test-bed using COTS at ISM band
Please use this identifier to cite or link to this item:
http://hdl.handle.net/1860/2698
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| Title: | 4x4 MIMO experimental test-bed using COTS at ISM band |
| Authors: | Spring, Ryan
Zhou, Liming
Gogate, Nikhil
Daryoush, Afshin S. |
| Keywords: | Ad-Hoc Network
AOA
Channel Capacity
Channel Sounding
MIMO Testbed
Virtual MIMO |
| Issue Date: | 9-Jan-2007 |
| Publisher: | Institute of Electrical and Electronics Engineers (IEEE) |
| Citation: | IEEE Transactions on Information Theory, 53(11): pp. 4127 - 4149. |
| Abstract: | This paper presents the implementation of a 4x4
multiple input multiple output (MIMO) test-bed that is
employed for channel characterization using virtual MIMO
indoor channel sounding technique. The 4x4 MIMO operates
at ISM frequency of 2.45GHz with 5MHz of bandwidth using
low cost commercially available off-the-shelf components
(COTS). The system benefits from direct conversion
transceiver units, reported before. Channel propagation
measurements were performed in a rich multi-path
environment by employing a virtual MIMO indoor wireless
channel sounding as well as a direction of arrival (DOA)
estimation algorithms. The channel sounding technique
employs sequential switching of 1x4 Single Input Multiple
Output (SIMO) channels to realize a virtual 4x4 MIMO
experiments in a stationary channel environment. A hardware
calibration method is also developed as a critical part of the
MIMO evaluation. The DOA experiment, which employs a
linear four-element patch antenna array at the receiver and a
single patch antenna at the transmitter, provides a maximum
of 15 degrees offset using Bartlett algorithm. The measured
channel response matrix is also verified through comparison
with other published results. |
| URI: | http://dx.doi.org/10.1109/RWS.2007.351795
http://hdl.handle.net/1860/2698 |
| Appears in Collections: | Faculty Research and Publications (ECE)
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