Nermin A. Mohamed and Mohamed F. Madkour
Combined Beamforming and Channel Estimation in WCDMA Communication Systems
382 - 385
2007
1
2
International Journal of Electronics and Communication Engineering
https://publications.waset.org/pdf/10479
https://publications.waset.org/vol/2
World Academy of Science, Engineering and Technology
We address the problem of joint beamforming and multipath channel parameters estimation in Wideband Code Division Multiple Access (WCDMA) communication systems that employ MultipleAccess Interference (MAI) suppression techniques in the uplink (from mobile to base station). Most of the existing schemes rely on time multiplex a training sequence with the user data. In WCDMA, the channel parameters can also be estimated from a code multiplexed common pilot channel (CPICH) that could be corrupted by strong interference resulting in a bad estimate. In this paper, we present new methods to combine interference suppression together with channel estimation when using multiple receiving antennas by using adaptive signal processing techniques. Computer simulation is used to compare between the proposed methods and the existing conventional estimation techniques.
Open Science Index 2, 2007