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Adaptive antenna arrays using sub-space techniques in a mobile radio environment with flat fading and CCI

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3 Author(s)
Boccuzzi, J. ; Cadence Design Syst. Inc., Edison, NJ, USA ; Pillai, S.U. ; Winters, J.

We compare the performance of the minimum mean square error (MMSE) and maximum signal to interference plus noise ratio (MSINR) cost functions in a flat fading channel with co-channel interference (CCI). We investigate the reduced rank and full rank weighted sub-space techniques. We observe that using the reduced rank approximation technique on MMSE is equivalent to MRC in a flat fading channel without CCI. For the CCI case we found the full rank weighted sub-space technique applied to MSINR performs best. Through reduced rank approximations of the covariance matrices, the signal sub-space performs well for the MMSE and the noise sub-space performs well for the MSINR. However, the weighted sub-space performance was close to the known rank case and much better than the conventional techniques

Published in:

Vehicular Technology Conference, 1999 IEEE 49th  (Volume:1 )

Date of Conference:

Jul 1999