Modified Uniform Triangular Array for Online Full Azimuthal Coverage via JADE-MUSIC Algorithm over MIMO-CDMA Channel
This paper investigates a Modified Uniform Triangular Array
(MUTA) to support online space-time MIMO-CDMA location based
services with full azimuthal coverage via JADE-MUSIC algorithm. A
new space-time lifting preprocessing (STLP) scheme is introduced as
a decorrelating process of coherent signals through the dense/NLOS
multipath MIMO channel before applying the JADE-MUSIC
estimator. Uniform- H-Array (UHA) and Uniform-X-Array (UXA)
geometries are established for performance comparisons with the
proposed MUTA. Computer simulations under environment Matlab
are described to illustrate the performance of online joint angle/delay
estimation with MUTA-MIMO base station applying JADE-MUSIC
in conjunction with STLP scheme in 360 degrees azimuth region.
Keywords: MIMO-CDMA, fading multipath proppagation, NLOS,
array processing, coherent case, decorrelating scheme, JADE,
MUSIC
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