Blind Adaptive Constrained Constant-Modulus Reduced-Rank Interference Suppression Algorithms Based on Interpolation and Switched Decimation

• Published in: IEEE transactions on signal processing Vol. 59; no. 2; pp. 681 - 695
• Main Authors: de Lamare, R C, Sampaio-Neto, R, Haardt, M
• Format: Journal Article
• Language: English
• Published: New York, NY IEEE 01.02.2011; Institute of Electrical and Electronics Engineers; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Adaptive algorithms; Algorithm design and analysis; Algorithms; Applied sciences; Blind adaptive estimation; Blinds; Complexity theory; Constraints; Detection, estimation, filtering, equalization, prediction; Estimation; Exact sciences and technology; Information, signal and communications theory; Interference; Interference suppression; Interpolation; iterative methods; Miscellaneous; Optimization; reduced-rank techniques; Reduction; Signal and communications theory; Signal processing; Signal, noise; spread spectrum systems; Studies; Switches; Telecommunications and information theory; Transformations; Wireless communication; Wireless communications; Performance evaluation; Rank statistic; iterative methods; Adaptive algorithm; Blind adaptive estimation; Wireless telecommunication; Adaptive estimation; Stochastic method; Adaptive method; Optimization; Least squares method; Direct sequence; Multistage method; Model selection; Blind identification; Interference suppression; Interpolation; Dimension reduction; Telecommunication system; Code division multiple access; Recursive method; Signal processing; spread spectrum systems; Matrix method; Decimation; reduced-rank techniques

This work proposes a blind adaptive reduced-rank scheme and constrained constant-modulus (CCM) adaptive algorithms for interference suppression in wireless communications systems. The proposed scheme and algorithms are based on a two-stage processing framework that consists of a transformation matri...