Title :
A combined blind beamforming and interference cancellation for a smart antenna system in MC-CDMA base station
Author :
Maichalernnukul, Kiattisak ; Jitapunkul, Somchai
Author_Institution :
Electr. Eng. Dept., Chulalongkorn Univ., Bangkok, Thailand
Abstract :
In this paper, we propose a simple antenna array-based MC-CDMA receiver that combines efficient blind adaptive beamforming based on maximum signal-to-interference-and-noise ratio (MSINR) criterion with parallel interference cancellation (PIC) for an MC-CDMA uplink system. The beamformer is used to enhance the desired signal and reduce the co-channel interference from other directions. For in-beam multiple access interference (MAI) cancellation, a PIC detector is used. Simulation results show that the proposed receiver can efficiently reject in-beam MAI even when one of the arrival angles is the same as that of the desired user.
Keywords :
adaptive antenna arrays; array signal processing; cochannel interference; code division multiple access; direction-of-arrival estimation; interference suppression; mobile radio; receiving antennas; MAI cancellation; MC-CDMA base station; MC-CDMA uplink system; MSINR; PIC detector; antenna array; arrival angles; blind adaptive beamforming; co-channel interference; in-beam multiple access interference; maximum signal-to-interference-and-noise ratio; parallel interference cancellation; receiver; smart antenna system; Adaptive arrays; Antenna arrays; Array signal processing; Base stations; Detectors; Interchannel interference; Interference cancellation; Multicarrier code division multiple access; Multiple access interference; Receiving antennas;
Conference_Titel :
Vehicular Technology Conference, 2004. VTC2004-Fall. 2004 IEEE 60th
Print_ISBN :
0-7803-8521-7
DOI :
10.1109/VETECF.2004.1399952
