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dc.contributor.authorMalas, Tahiren_US
dc.contributor.authorGürel, Leventen_US
dc.coverage.spatialNice, Franceen_US
dc.date.accessioned2016-02-08T11:48:15Zen_US
dc.date.available2016-02-08T11:48:15Zen_US
dc.date.issued2006en_US
dc.identifier.issn0379-6566en_US
dc.identifier.urihttp://hdl.handle.net/11693/27234en_US
dc.descriptionDate of Conference: 6-10 November 2006en_US
dc.descriptionConference Name: 1st European Conference on Antennas and Propagation, EUCAP 2006en_US
dc.description.abstractLinear systems resulting from the electric-field integral equation (EFIE) become ill-conditioned, particularly for large-scale problems. Hence, effective preconditioners should be used to obtain the iterative solution with the multilevel fast multipole algorithm in a reasonable time. In this paper, we show that a threshold-based incomplete LU (ILU) preconditioner, i.e., ILUT, can be used safely for such systems, provided that column pivoting is applied for the stability of the incomplete factors. It is observed that the resulting preconditioner ILUTP reduces the solution times by an order of magnitude, compared to simple Jacobi preconditioner. Moreover, we also use the iterative solution of the near-field system as a preconditioner, and use ILUTP as the preconditioner for the near-field system. This way, the effectiveness of the ILUTP is further improved.en_US
dc.language.isoEnglishen_US
dc.source.titleProceedings of the 1st European Conference on Antennas and Propagation, EUCAP 2006en_US
dc.subjectAlgorithmsen_US
dc.subjectElectric field effectsen_US
dc.subjectIterative methodsen_US
dc.subjectLinear systemsen_US
dc.subjectElectric field integral equations (EFIE)en_US
dc.subjectMultipole algorithmsen_US
dc.subjectPreconditionersen_US
dc.subjectIntegral equationsen_US
dc.titleIncomplete LU preconditioning for the electric-field integral equationen_US
dc.typeConference Paperen_US
dc.departmentDepartment of Electrical and Electronics Engineeringen_US
dc.departmentComputational Electromagnetics Research Center (BiLCEM)en_US
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