  The purpose of this paper is to indicate that the recently proposed Momentum
fractional least mean squares (mFLMS) algorithm has some serious flaws in its
design and analysis. Our apprehensions are based on the evidence we found in
the derivation and analysis in the paper titled: \textquotedblleft
\textit{Momentum fractional LMS for power signal parameter
estimation}\textquotedblright. In addition to the theoretical bases our claims
are also verified through extensive simulation results. The experiments clearly
show that the new method does not have any advantage over the classical least
mean square (LMS) method.
