This paper derives general formulae for normalized error surface curvatures by using the
constant modulus algorithm (CMA), the multimodulus algorithm (MMA), and two well known …

Quadrature amplitude modulation (QAM) is one of the essential components of unmanned 1
aerial vehicle (UAV) communications. However, the output signal accuracy of QAM …

An equalizer is a device that performs the reverse operation of the fading channel to mitigate
the effect of inter-symbol interference (ISI) and nonlinearity. In contrast to conventional …

This paper studies the stationary points of the multimodulus blind equalization criterion in a
noiseless communication channel and proposes two adaptive Newton algorithms. It is …

This work investigates the effect of channel noise on the performances of the constant
modulus algorithm (CMA), the multimodulus algorithm (MMA), and a phase tracker (PT) …

In the literature, we can find several blind adaptive deconvolution algorithms based on
closed-form approximated expressions for the conditional expectation (the expectation of the …

This paper proposes a blind equalizer that pursues the maximization of a novel objective
function. It consists of the ratio between the square of the mean signal power and the …

This work introduces an adaptive equalizer, namely the multi-constant modulus algorithm
(MCMA), for blind equalization of QAM signals. The novelty of our approach is to combine …

In a blind adaptive deconvolution problem, the convolutional noise observed at the output of
the deconvolution process, in addition to the required source signal, is—according to the …

In polarization-multiplexed (PolMux) coherent system, adaptive blind equalization is efficient
in demultiplexing and mitigating inter-symbol interference (ISI). We propose a double …