Comments on "Momentum fractional LMS for power signal parameter estimation"

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 $\mathit{\text{Momentum}}\mathit{\text{fractional}}\mathit{\text{LMS}}\mathit{\text{for}}\mathit{\text{power}}\mathit{\text{signal}}\mathit{\text{parameter}}\mathit{\text{estimation}}$\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.