Title | ||
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Adaptive reduced-rank RLS algorithms based on joint iterative optimization of adaptive filters for space-time interference suppression |
Abstract | ||
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This paper presents novel adaptive reduced-rank filtering algorithms based on joint iterative optimization of adaptive filters. The novel scheme consists of a joint iterative optimization of a bank of full-rank adaptive filters that constitute the projection matrix and an adaptive reduced-rank filter that operates at the output of the bank of filters. We describe least squares (LS) expressions for the design of the projection matrix and the reduced-rank filter and recursive least squares (RLS) adaptive algorithms for its computationally efficient implementation. Simulations for a space-time interference suppression in a CDMA system application show that the proposed scheme outperforms in convergence and tracking the state-of-the-art reduced-rank schemes at about the same complexity. |
Year | DOI | Venue |
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2008 | 10.1109/ICASSP.2008.4518483 | Las Vegas, NV |
Keywords | Field | DocType |
adaptive filters,channel bank filters,code division multiple access,filtering theory,interference suppression,least squares approximations,matrix algebra,radiofrequency interference,spread spectrum communication,CDMA system,adaptive reduced-rank RLS algorithms,filtering algorithms,full-rank adaptive filter banks,joint iterative optimization,projection matrix,recursive least squares adaptive algorithms,space-time interference suppression,Adaptive filters,RLS algorithms,iterative methods,space-time processing | Least squares,Mathematical optimization,Iterative method,Computer science,Control theory,Algorithm,Filter (signal processing),Projection (linear algebra),Adaptive filter,Kernel adaptive filter,Recursive least squares filter,Spread spectrum | Conference |
ISSN | ISBN | Citations |
1520-6149 E-ISBN : 978-1-4244-1484-0 | 978-1-4244-1484-0 | 0 |
PageRank | References | Authors |
0.34 | 7 | 4 |
Name | Order | Citations | PageRank |
---|---|---|---|
Rodrigo C. de Lamare | 1 | 1461 | 179.59 |
Raimundo Sampaio Neto | 2 | 155 | 25.30 |
de Lamare, R.C. | 3 | 652 | 33.42 |
Sampaio-Neto, R. | 4 | 0 | 0.34 |