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Efficient VLSI Architectures for Recursive Vandermonde QR Decomposition in Broadband OFDM Pre-distortion

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dc.contributor.author Guo, Yuanbin
dc.creator Guo, Yuanbin
dc.date.accessioned 2007-10-31T00:46:10Z
dc.date.available 2007-10-31T00:46:10Z
dc.date.issued 2005-03-01
dc.date.submitted 2005-03-01
dc.identifier.uri http://hdl.handle.net/1911/19934
dc.description Conference Paper
dc.description.abstract The Vandermonde system is used in OFDM predistortion to enhance the power efficiency dramatically. In this paper, we study efficient FPGA architectures of a recursive algorithm for the Cholesky and QR factorization of the Vandermonde system. We identify the key bottlenecks of the algorithm for the real-time constraints and resource consumption. Several architecture/resource tradeoffs are studied to find the commonalities in the architectures for a best partitioning. Hardware resources are reused according to the algorithmic parallelism and data dependency to achieve the best timing/area performance in hardware. The architectures are implemented in Xilinx FPGA and tested in Aptix real-time hardware platform with 11348 cycles at 25ns clock rate.
dc.language.iso eng
dc.subject OFDM
predistorter
QR decomposition
Vandermonde
dc.title Efficient VLSI Architectures for Recursive Vandermonde QR Decomposition in Broadband OFDM Pre-distortion
dc.type Conference Paper
dc.date.note 2005-12-05
dc.citation.bibtexName inproceedings
dc.date.modified 2005-12-09
dc.contributor.center Center for Multimedia Communications (http://cmc.rice.edu/)
dc.subject.keyword OFDM
predistorter
QR decomposition
Vandermonde
dc.citation.conferenceName IEEE Wireless Communications and Networking Conference
dc.type.dcmi Text
dc.identifier.citation Y. Guo,"Efficient VLSI Architectures for Recursive Vandermonde QR Decomposition in Broadband OFDM Pre-distortion," in IEEE Wireless Communications and Networking Conference,

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  • ECE Publications [1032 items]
    Publications by Rice University Electrical and Computer Engineering faculty and graduate students
  • CMC Publications [275 items]
    Publications by Rice Faculty and graduate students in multimedia communications