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The “Infomax” method of Independent Component Analysis (ICA) is applied to the problem of separating received signals that overlap in time and frequency, but are otherwise unrelated. The Infomax method separates unknown non-Gaussian signals from a number of signal mixtures by maximizing the entropy of a transformed set of signal mixtures. This work specifically focuses on mixtures of simple communications...
In the time domain, the COTM channel is best modeled as a Markov generative process. The Baum-Welch parameter estimation algorithm is applied to empirical data collected in Boston, MA. The parameter estimation algorithm provides guidance for the development of a Markovian generative model to represent the ULMSC fade function in a larger time-based simulation. Three different continuous output transmission...
Bit error rate performance analysis for communications systems with diversity and partial-band interference often yields complicated probability density functions (PDFs) for the decision statistics. The authors calculate these PDFs via a new technique by evaluating the inverse Laplace transform as an integral of a real integrand over a finite range.
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