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Performance of Channel Estimation for (OFDM) System Based on Block-Type Pilot Arrangement in Rayleigh Fading Channel

open access: yesJournal of Engineering and Sustainable Development, 2011
Recently, the superimposed pilot channel estimation has been proposed for wireless communications, where the pilot symbol sequence is superimposed on a data symbol sequence and transmitted together, and thus it has higher spectral efficiency.
Fadia Noori Al-Nuaimy, Maha George Zia
doaj  

Quantile estimation in dependent sequences

open access: yes, 1981
Standard nonparametric estimators of quantiles based on order statistics can be used not only when the data are i.i.d., but also when the data are from a stationary, phi-mixing process of continuous random variables. However, when the random variables are highly positively correlated, sample sizes needed for acceptable precision in estimates of extreme
Heidelberger, P., Lewis, Peter A. W.
openaire   +1 more source

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