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

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dc.contributor.author Mandayam, Narayan B.
Aazhang, Behnaam
dc.creator Mandayam, Narayan B.
Aazhang, Behnaam
dc.date.accessioned 2007-10-31T00:52:47Z
dc.date.available 2007-10-31T00:52:47Z
dc.date.issued 1997-05-20
dc.date.submitted 2001-10-17
dc.identifier.uri http://hdl.handle.net/1911/20084
dc.description Journal Paper
dc.description.abstract For 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.
dc.subject Discrete-event simulations
frequency-encoded
OCDMA
infinitesimal perturbation analysis
likelihood ratio
method
time-encoded OCDMA
dc.title Gradient Estimation for Stochastic Optimization of Optical Code-Division Multiple-Access Systems: Part I -- Generalized Sensitivity Analysis
dc.type Journal Paper
dc.citation.bibtexName article
dc.citation.journalTitle IEEE Journal in Selected Areas in Communication
dc.date.modified 2001-10-17
dc.contributor.center Center for Multimedia Communications (http://cmc.rice.edu/)
dc.subject.keyword Discrete-event simulations
frequency-encoded
OCDMA
infinitesimal perturbation analysis
likelihood ratio
method
time-encoded OCDMA
dc.citation.volumeNumber 15
dc.citation.pageNumber 731-741
dc.citation.issueNumber 4
dc.identifier.citation N. B. Mandayam and B. Aazhang, "Gradient Estimation for Stochastic Optimization of Optical Code-Division Multiple-Access Systems: Part I -- Generalized Sensitivity Analysis," IEEE Journal in Selected Areas in Communication, vol. 15, no. 4, pp. 731-741, 1997.
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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