Corrections to “Unified Laguerre Polynomial-Series-Based Distribution of Small-Scale Fading Envelopes” [Oct 09 3988-3999]

In this correspondence, we point out two typographical errors in Chai and Tjhung's paper, and we offer the correct formula of the unified Laguerre polynomial-series-based cumulative distribution function (cdf) for small-scale fading distributions. A Laguerre polynomial-series-based cdf formula for noncentral chi-square distribution is also provided as a special case of our unified cdf result.