On array failure mitigation with respect to probability of failure, using constant excitation coefficients and a genetic algorithm

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dc.contributor.author Mitilineos, SA en
dc.contributor.author Thomopoulos, SCA en
dc.contributor.author Capsalis, CN en
dc.date.accessioned 2014-03-01T01:24:46Z
dc.date.available 2014-03-01T01:24:46Z
dc.date.issued 2006 en
dc.identifier.issn 1536-1225 en
dc.identifier.uri http://hdl.handle.net/123456789/17428
dc.subject Failure mitigation en
dc.subject Genetic algorithms (gas) en
dc.subject Probability of failure en
dc.subject Switched-beam antenna arrays (sbas) en
dc.subject.classification Engineering, Electrical & Electronic en
dc.subject.classification Telecommunications en
dc.subject.other Communications systems en
dc.subject.other Early design stages en
dc.subject.other Element failure en
dc.subject.other Excitation coefficients en
dc.subject.other Failure effects en
dc.subject.other Failure mitigation en
dc.subject.other Modified genetic algorithms en
dc.subject.other Probability of failure en
dc.subject.other Radiation patterns en
dc.subject.other Spectral efficiencies en
dc.subject.other Switched beam antennas en
dc.subject.other System Capacity en
dc.subject.other Antenna arrays en
dc.subject.other Probabilistic logics en
dc.subject.other Probability en
dc.subject.other Spectrum analyzers en
dc.subject.other Genetic algorithms en
dc.title On array failure mitigation with respect to probability of failure, using constant excitation coefficients and a genetic algorithm en
heal.type journalArticle en
heal.identifier.primary 10.1109/LAWP.2006.874068 en
heal.identifier.secondary http://dx.doi.org/10.1109/LAWP.2006.874068 en
heal.identifier.secondary 874068 en
heal.language English en
heal.publicationDate 2006 en
heal.abstract Switched-beam antenna arrays (SBAs) are widely used in communications systems in order to increase system capacity and spectral efficiency. If an element fails during operation, a significant degradation of the array's performance is observed, even after redistribution of the array's excitation coefficients. Furthermore, redistribution of the excitation coefficients is not always possible. In this letter, a study on the effect of an element failure to an array's radiation patterns, with respect to the probability of failure, is performed. It is shown that mitigation of failure effects is possible if the possibility of failure is taken into account during early design stages. This is accomplished by using a modified genetic algorithm (GA). With the proposed methodology, mitigation is achieved even without the need to redistribute the array's excitation coefficients. © 2006 IEEE. en
heal.journalName IEEE Antennas and Wireless Propagation Letters en
dc.identifier.doi 10.1109/LAWP.2006.874068 en
dc.identifier.isi ISI:000243815900050 en
dc.identifier.volume 5 en
dc.identifier.issue 1 en
dc.identifier.spage 187 en
dc.identifier.epage 190 en

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