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Fully Pipelined Implementation of Tree-Search Algorithms for Vector Precoding
Joint Authors
Mendicute, Mikel
Arruti, Egoitz
Barrenechea, Maitane
Source
International Journal of Reconfigurable Computing
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-12, 12 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-02-21
Country of Publication
Egypt
No. of Pages
12
Main Subjects
Information Technology and Computer Science
Abstract EN
The nonlinear vector precoding (VP) technique has been proven to achieve close-to-capacity performance in multiuser multiple-input multiple-output (MIMO) downlink channels.
The performance benefit with respect to its linear counterparts stems from the incorporation of a perturbation signal that reduces the power of the precoded signal.
The computation of this perturbation element, which is known to belong in the class of NP-hard problems, is the main aspect that hinders the hardware implementation of VP systems.
To this respect, several tree-search algorithms have been proposed for the closest-point lattice search problem in VP systems hitherto.
Nevertheless, the optimality of these algorithms has been assessed mainly in terms of error-rate performance and computational complexity, leaving the hardware cost of their implementation an open issue.
The parallel data-processing capabilities of field-programmable gate arrays (FPGA) and the loopless nature of the proposed tree-search algorithms have enabled an efficient hardware implementation of a VP system that provides a very high data-processing throughput.
American Psychological Association (APA)
Barrenechea, Maitane& Mendicute, Mikel& Arruti, Egoitz. 2013. Fully Pipelined Implementation of Tree-Search Algorithms for Vector Precoding. International Journal of Reconfigurable Computing،Vol. 2013, no. 2013, pp.1-12.
https://search.emarefa.net/detail/BIM-476274
Modern Language Association (MLA)
Barrenechea, Maitane…[et al.]. Fully Pipelined Implementation of Tree-Search Algorithms for Vector Precoding. International Journal of Reconfigurable Computing No. 2013 (2013), pp.1-12.
https://search.emarefa.net/detail/BIM-476274
American Medical Association (AMA)
Barrenechea, Maitane& Mendicute, Mikel& Arruti, Egoitz. Fully Pipelined Implementation of Tree-Search Algorithms for Vector Precoding. International Journal of Reconfigurable Computing. 2013. Vol. 2013, no. 2013, pp.1-12.
https://search.emarefa.net/detail/BIM-476274
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-476274