Abstract
In this paper, as an extension of a previous study, an improved approximation for the Gaussian Q-function is presented. The nonlinear least squares algorithm is employed to optimize the coefficients of the proposed approximation. The accuracy of the presented approximation is evaluated using extensive computer simulations. Results show that the proposed approximation has superior accuracy in high arguments’ region when compared to the performance of other approaches introduced in the literature.
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Simon, M.K.: Probability Distributions Involving Gaussian Random Variables: A Handbook for Engineers and Scientists. Springer, Berlin (2006)
Beaulieu, N.C.: A simple series for personal computer computation of the error function Q(). IEEE Trans. Commun. 37, 989–991 (1989)
Tellambura, C., Annamalai, A.: Efficient computation of \(Q\left(x\right)\) for large arguments. IEEE Trans. Commun. 48, 529–532 (2000)
Benitez, M.L., Casadevall, F.: Versatile, accurate, and analytically tractable approximation for the Gaussian Q-function. IEEE Trans. Commun. 59, 917–922 (2011)
Börjesson, P.O., Sundberg, C.E.W.: Simple approximations of the error function \(Q\left(x\right)\) for communications applications. IEEE Trans. Commun. COM-27, 639–643 (1979)
Chen, Y., Beaulieu, N.C.: A simple polynomial approximation to the Gaussian Q-function and its application. IEEE Commun. Lett. 13, 124–126 (2009)
Chiani, M., Dardari, D., Simon, M.K.: New exponential bounds and approximations for the computation of error probability in fading channels. IEEE Trans. Wirel. Commun. 2, 840–845 (2003)
Dyer, J.S., Dyer, S.A.: Corrections to, and comments on, “An improved approximation for the Gaussian Q-function”. IEEE Commun. Lett. 12, 231 (2008)
Isukapalli, Y., Rao, B.D.: An analytically tractable approximation for the Gaussian Q-function. IEEE Commun. Lett. 12, 669–671 (2008)
Karagiannidis, G.K., Lioumpas, A.S.: An improved approximation for the Gaussian Q-function. IEEE Commun. Lett. 11, 644–646 (2007)
Loskot, P., Beaulieu, N.C.: Prony and polynomial approximations for evaluation of the average probability of error over slow-fading channels. IEEE Trans. Veh. Technol. 58, 1269–1280 (2009)
Develi, I., Akdagli, A.: High-order exponential approximations for the Gaussian Q-function obtained by genetic algorithm. Int. J. Electron. doi:10.1080/00207217.2012.713024
Develi, I.: A new approximation based on the differential evolution algorithm for the Gaussian Q-function. Int. J. Innov. Comput. Inf. Control 8, 7095–7102 (2012)
Levenberg, K.: A method for the solution of certain nonlinear problems in least-squares. Q. Appl. Math. II, 164–168 (1944)
Marquardt, D.W.: An algorithm for least-squares estimation of nonlinear parameters. SIAM J. Appl. Math. 11, 431–441 (1963)
Dennis, J.E.: In: Nonlinear Least-Squares: State of the Art in Numerical Analysis, pp. 269–312. Academic Press, New York (1977)
Nocedal, J., Wright, S.J.: Numerical Optimization, 2nd edn. Springer, Berlin (2006)
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Develi, I., Basturk, A. Highly Accurate Analytic Approximation to the Gaussian Q-function Based on the Use of Nonlinear Least Squares Optimization Algorithm. J Optim Theory Appl 159, 183–191 (2013). https://doi.org/10.1007/s10957-012-0217-0
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DOI: https://doi.org/10.1007/s10957-012-0217-0