Gradient Estimation for Stochastic Optimization of Optical Code-Division Multiple-Access Systems: Part I -- Generalized Sensitivity Analysis

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dc.citation.bibtexNamearticleen_US
dc.citation.firstpage731en_US
dc.citation.issueNumber4en_US
dc.citation.journalTitleIEEE Journal in Selected Areas in Communicationen_US
dc.citation.lastpage741en_US
dc.citation.volumeNumber15en_US
dc.contributor.authorMandayam, Narayan B.en_US
dc.contributor.authorAazhang, Behnaamen_US
dc.contributor.orgCenter for Multimedia Communications (http://cmc.rice.edu/)en_US
dc.date.accessioned2007-10-31T00:52:47Zen_US
dc.date.available2007-10-31T00:52:47Zen_US
dc.date.issued1997-05-20en_US
dc.date.modified2001-10-17en_US
dc.date.submitted2001-10-17en_US
dc.descriptionJournal Paperen_US
dc.description.abstractFor optimizing the performance of optical code-division multiple-access (CDMA) systems, there is a need for determining the sensitivity of the bit-error rate (BER) of the system to various system parameters. Asymptotic approximations and bounds, used for system bit-error probabilities, seldom capture the sensitivities of the system performance. We develop single-run gradient estimation methods for such optical CDMA systems using a discrete-event dynamic systems (DEDS) approach. Specifically, computer-aided techniques such as infinitesimal perturbation analysis (IPA) and likelihood ratio (LR) methods are used for analyzing the sensitivity of the average BER to a wide class of system parameters. It is shown that the above formulation is equally applicable to time-encoded and frequency-encoded systems. Further, the estimates derived are unbiased, and also optimality of the variance of these estimates is shown via the theory of common random variates and importance sampling techniques.en_US
dc.identifier.citationN. B. Mandayam and B. Aazhang, "Gradient Estimation for Stochastic Optimization of Optical Code-Division Multiple-Access Systems: Part I -- Generalized Sensitivity Analysis," <i>IEEE Journal in Selected Areas in Communication,</i> vol. 15, no. 4, 1997.en_US
dc.identifier.doihttp://dx.doi.org/10.1109/49.585783en_US
dc.identifier.urihttps://hdl.handle.net/1911/20084en_US
dc.language.isoengen_US
dc.subjectDiscrete-event simulationsen_US
dc.subjectfrequency-encodeden_US
dc.subjectOCDMAen_US
dc.subjectinfinitesimal perturbation analysisen_US
dc.subjectlikelihood ratioen_US
dc.subjectmethoden_US
dc.subjecttime-encoded OCDMAen_US
dc.subject.keywordDiscrete-event simulationsen_US
dc.subject.keywordfrequency-encodeden_US
dc.subject.keywordOCDMAen_US
dc.subject.keywordinfinitesimal perturbation analysisen_US
dc.subject.keywordlikelihood ratioen_US
dc.subject.keywordmethoden_US
dc.subject.keywordtime-encoded OCDMAen_US
dc.titleGradient Estimation for Stochastic Optimization of Optical Code-Division Multiple-Access Systems: Part I -- Generalized Sensitivity Analysisen_US
dc.typeJournal articleen_US
dc.type.dcmiTexten_US
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