An improved simulation model for Nakagami-m fading channels for satellite positioning applications

This paper presents a simple and efficient simulation model for Nakagami-m fading channels. We first show, via measurement data, that the Nakagami-m distribution provides the best fit for the fading amplitudes of the satellite-to-indoor and satellite-tooutdoor channels. Therefore, finding a viable simulation model for Nakagami-m distribution is very important for the purpose of studying signal and link level positioning algorithms. We then extend a previously proposed method, namely the Beaulieu &al method, to a wider range of m-values, keeping a low computational effort. Theoretical results are validated via comparison with simulation-based curves, and the limits of the algorithm are discussed.