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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.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.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 [1028 items]
    Publications by Rice University Electrical and Computer Engineering faculty and graduate students
  • CMC Publications [272 items]
    Publications by Rice Faculty and graduate students in multimedia communications