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New adaptive downlink beamforming method for WCDMA system

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2 Author(s)
Donghee Shim ; R&D Center, LG Electron. Inc., Kyoungki ; Alam, F.

One of the main issues for downlink beamforming with a smart antenna system is the impact of the desired user on other subscribers. Downlink beamforming for the desired user will change the interference to all other subscribers. We propose a new algorithm employing the conjugate gradient method (CGM) to mitigate the effect of interference. This algorithm is termed adaptive interference mitigation using CGM (AIM-CGM). We compare the performance of this algorithm with a conventional beamformer using the signal format of frequency division duplexing (FDD) wideband code division multiple access (W-CDMA)

Published in:

Vehicular Technology Conference, 2001. VTC 2001 Spring. IEEE VTS 53rd  (Volume:1 )

Date of Conference:

2001