Xie Ning, Zhou Yuan-ping, Xia Ming-hua, Mo Wu-zhong, Tang Wen-ming. An Adaptive Multistage Beamforming Receiver with a Low Complexity[J]. Journal of Electronics & Information Technology, 2007, 29(11): 2612-2615. doi: 10.3724/SP.J.1146.2006.00496
Citation:
Xie Ning, Zhou Yuan-ping, Xia Ming-hua, Mo Wu-zhong, Tang Wen-ming. An Adaptive Multistage Beamforming Receiver with a Low Complexity[J]. Journal of Electronics & Information Technology, 2007, 29(11): 2612-2615. doi: 10.3724/SP.J.1146.2006.00496
Xie Ning, Zhou Yuan-ping, Xia Ming-hua, Mo Wu-zhong, Tang Wen-ming. An Adaptive Multistage Beamforming Receiver with a Low Complexity[J]. Journal of Electronics & Information Technology, 2007, 29(11): 2612-2615. doi: 10.3724/SP.J.1146.2006.00496
Citation:
Xie Ning, Zhou Yuan-ping, Xia Ming-hua, Mo Wu-zhong, Tang Wen-ming. An Adaptive Multistage Beamforming Receiver with a Low Complexity[J]. Journal of Electronics & Information Technology, 2007, 29(11): 2612-2615. doi: 10.3724/SP.J.1146.2006.00496
An adaptive multistage beamforming receiver with a low complexity that is suitable for CDMA wireless communication systems is proposed in this paper. The receiver adopts a novel orthogonal multistage structure to achieve the system optimization which is carried out independently at each stage. The system parameters for each stage are obtained through a simple iterative procedure, and a complex weight is set up at each stage. The MMSE optimization criterion is used to compute and update the adaptive weight. The number of stages is determined by signal environments to make the system more flexible. In comparison with other methods, the proposed system provides an improved performance especially in correlated signal environments. In addition, it gives a reduced computational complexity.
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