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dc.contributor.advisorMa, Xiaoli
dc.contributor.advisorAnderson, David V.
dc.contributor.authorRen, Minzhen
dc.date.accessioned2014-01-13T16:20:57Z
dc.date.available2014-01-13T16:20:57Z
dc.date.created2013-12
dc.date.issued2013-10-14
dc.date.submittedDecember 2013
dc.identifier.urihttp://hdl.handle.net/1853/50256
dc.description.abstractThe object of the thesis research is to realize a complex-valued QR decomposition (QRD) algorithm on FPGAs for MIMO communication systems. The challenge is to implement a QRD processor that efficiently utilizes hardware resources to meet throughput requirements in MIMO systems. By studying the basic QRD algorithm using Givens rotations and the CORDIC algorithm, the thesis develops a master-slave structure to more efficiently implement CORDIC-based Givens rotations compared to traditional methods. Based on the master-slave structure, an processing-element array architecture is proposed to further improve result precision and to achieve near-theoretical latency with parallelized normalization and rotations. The proposed architecture also demonstrates flexible scalability through implementations for different sizes of QRDs. The QRD implementations can process 7.41, 1.90 and 0.209 million matrices per second for two by two, four by four and eight by eight QRDs respectively. This study has built the foundation to develop QRD processors that can fulfill high throughput requirements for MIMO systems.
dc.format.mimetypeapplication/pdf
dc.language.isoen_US
dc.publisherGeorgia Institute of Technology
dc.subjectCORDIC
dc.subjectGivens rotations
dc.subjectQR decomposition
dc.subjectMIMO
dc.subjectSorted-QR decomposition
dc.subjectFPGA
dc.subject.lcshMIMO systems
dc.subject.lcshWireless communication systems
dc.subject.lcshDecomposition method
dc.titleCordic-based Givens QR decomposition for MIMO detectors
dc.typeThesis
dc.description.degreeM.S.
dc.contributor.departmentElectrical and Computer Engineering
thesis.degree.levelMasters
dc.contributor.committeeMemberMcClellan, James H.
dc.contributor.committeeMemberBloch, Matthieu R.
dc.date.updated2014-01-13T16:20:57Z


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