Name
Title | ||
|---|---|---|
Adaptive MIMO Decision Feedback Reduced-Rank Equalization Based on Joint Iterative Optimization of Adaptive RLS Estimation Algorithms |
Abstract | ||
|---|---|---|
This paper presents a novel adaptive reduced- rank multi-input-multi-output (MIMO) decision feedback equalization structure based on joint iterative optimization of adaptive estimators. The novel reduced-rank equalization structure consists of a joint iterative optimization of two equalization stages, namely, a projection matrix that performs dimensionality reduction and a reduced-rank estimator that retrieves the desired transmitted symbol. The proposed reduced- rank structure is followed by a decision feedback scheme that is responsible for cancelling the inter-antenna interference caused by the associated data streams. We describe least squares (LS) expressions for the design of the projection matrix and the reduced-rank estimator along with computationally efficient recursive least squares (RLS) adaptive estimation algorithms. Simulations for a MIMO equalization application show that the proposed scheme outperforms the state-of-the-art reduced-rank and the conventional estimation algorithms at about the same complexity. |
Year | DOI | Venue |
|---|---|---|
2008 | 10.1109/WCNC.2008.78 | Las Vegas, NV |
Keywords | Field | DocType |
MIMO communication,adaptive estimation,equalisers,feedback,iterative methods,least squares approximations,matrix algebra,optimisation,MIMO equalization,adaptive MIMO decision feedback reduced-rank equalization,adaptive RLS estimation,adaptive estimators,associated data streams,decision feedback scheme,dimensionality reduction,interantenna interference,joint iterative optimization,least squares expressions,multiinput-multioutput decision feedback equalization structure,projection matrix,recursive least squares adaptive estimation,reduced-rank equalization structure,reduced-rank estimator,reduced-rank structure | Least squares,Mathematical optimization,Dimensionality reduction,Equalization (audio),Computer science,Iterative method,Algorithm,Projection (linear algebra),MIMO,Recursive least squares filter,Estimator | Conference |
ISSN | ISBN | Citations |
1525-3511 | 978-1-4244-1997-5 | 2 |
PageRank | References | Authors |
0.39 | 13 | 5 |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Rodrigo C. de Lamare | 1 | 1461 | 179.59 |
| Are Hjørungnes | 2 | 951 | 57.29 |
| Raimundo Sampaio Neto | 3 | 155 | 25.30 |
| de Lamare, R.C. | 4 | 652 | 33.42 |
| Sampaio-Neto, R. | 5 | 2 | 0.39 |