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On Asymptotic Efficiency for Asynchronous CDMA
2007 41st Annual Conference on Information Sciences and Systems, 2007We consider asynchronous CDMA systems and analyze their performances in terms of asymptotic efficiency when linear receivers are employed and the system becomes overloaded. We show that in such systems, differently from synchronous systems, linear detectors can be asymptotically efficient and, specifically, that the MMSE detector is asymptotically ...
ROMANO, Gianmarco +3 more
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On the asymptotic efficiencies of robust detectors
IEEE Transactions on Information Theory, 1992Summary: Two methods are considered for comparing the asymptotic efficiencies of robust detectors in the problem of detecting coherent signals in additive noise. The first of these methods considers the relative detector sample sizes for a fixed value of the detector power, while the second method considers the relative detector sample sizes for a ...
Emily C. Martin, H. Vincent Poor
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Optimum Multiuser Asymptotic Efficiency
IEEE Transactions on Communications, 1986The degradation in bit error rate due to the presence of multiple-access interference in a white Gaussian channel can be measured by the multiuser asymptotic efficiency, defined as the ratio between the SNR required to achieve the same uncoded bit error rate in the absence of interfering users and the actual SNR.
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Asymptotic Efficiency of Inverse Estimators
Theory of Probability & Its Applications, 2000Summary: Inverse estimation concerns the recovery of an unknown input signal from blurred observations on a known transformation of that signal. The estimators considered in this paper are based on a regularized inverse of the transformation involved, employing a Hilbert space set-up. We focus on properties related to weak convergence. It is shown that
van Rooij, A. C. M. +2 more
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Asymptotic Relative Efficiency
1981In any given inference situation, many statistical procedures may be available, both parametric and nonparametric. Some measure of their relative merits is needed, especially as regards their performance or operating characteristics. For instance, a comparison of the power functions of various tests of the same (or essentially the same) hypotheses ...
John W. Pratt, Jean D. Gibbons
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On the asymptotic efficiency of estimators
Mathematica Applicanda, 2018We present and discuss the notion of asymptotic efficiency of estimators as introduced by Hajek and Le Cam. We give also some general construction of a class of asymptotically efficient estimators of Euclidean parameters. Moreover, we briefly indicate some generalizations of the discussed ideas to the case of semiparametric models.
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Higher Order Asymptotic Efficiency and Asymptotic Completeness
1981In this chapter the concept of (higher order) asymptotic completeness of an estimator is introduced and it is shown that the maximum likelihood estimator is second order and third order asymptotically complete. Further the second order asymptotic efficiency of unbiased confidence intervals is discussed.
Masafumi Akahira, Kei Takeuchi
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2001
Any consistent and asymptotically normal estimator with a variance-covariance matrix of the stabilizing transformation attaining the Cramer-Rao efficiency bound is said to be asymptotically efficient (cf. Amemiya, 1985, p. 124). It is well known that the Cramer-Rao bound is given by the inverse of the information matrix.
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Any consistent and asymptotically normal estimator with a variance-covariance matrix of the stabilizing transformation attaining the Cramer-Rao efficiency bound is said to be asymptotically efficient (cf. Amemiya, 1985, p. 124). It is well known that the Cramer-Rao bound is given by the inverse of the information matrix.
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Asymptotic Relative Efficiency
American Journal of Occupational Therapy, 1986openaire +2 more sources
The Concept of Asymptotic Efficiency
1988Partly of an expository nature this note brings out the fact that an estimator, though asymptotically much less efficient (in the classical sense) than another, may yet have much greater probability concentration (as defined in this article) than the latter.
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