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Multiple Blind Beamforming Based on LSCMA
Yan GUO Ning LI MyoungSeob LIM JinLong WANG
Publication
IEICE TRANSACTIONS on Communications
Vol.E92B
No.8
pp.27082713 Publication Date: 2009/08/01
Online ISSN: 17451345
DOI: 10.1587/transcom.E92.B.2708
Print ISSN: 09168516 Type of Manuscript: PAPER Category: Antennas and Propagation Keyword: smart antennas, blind beamforming, LSCMA, direction of arrival,
Full Text: PDF>>
Summary:
Blind beamforming plays an important role in multipleinput multipleoutput (MIMO) Systems, radar, cognitive radio, and system identification. In this paper, we propose a new algorithm for multiple blind beamforming algorithm based on the least square constant modulus algorithm (LSCMA). The new method consists of the following three parts: (a) beamforming of one signal with LSCMA. (b) directionofarrival (DOA) estimation of the remaining signals by rooting the weight vector polynomial. (c) beamforming of the remaining signals with linear constraints minimum variance (LCMV) method. After the convergence of LSCMA, one signal is captured and the arrival angles of the remaining signals can be obtained by rooting the weight vector polynomial. Therefore, beamforming can be quickly established for the remaining signals using LCMV method. Simultaneously the DOA of the signals can also be obtained. Simulation results show the performance of the presented method.

