A Unified Disk Scattering Model and Its Angle-of-Departure and Time-of-Arrival Statistics

A Novel Non-Stationary Channel Model Utilizing Brownian Random Paths

“…In the equation above, 2σ 2 0 is the mean power of µ(t l ), and p f ( f ; l) is given by (7). For the special case that the path P crosses the ring's center (0, 0), the first-order density p f ( f ; l) in (7) reduces to…”

“…By considering a very short observation time instant, the AOM and AOA at the MS can be assumed as random variables such that the stationarity assumption holds. The one-ring scattering model [4][5][6] and the unified disk scattering model (UDSM) [7] are two examples chosen from the list of stationary channel models in [8] and [7].…”

“…For instance, none of the established geometric scattering models listed in [7,8] has been studied under non-stationary conditions. The only exception is the non-stationary one-ring scattering model studied in [17][18][19], in which it is assumed that the MS travels along either a straight line [17], or a semi-random path with drift [18], or a totally random path [19].…”

Temporal Autocorrelation Properties of Three Dimensional Vehicle-to -Vehicle Channels in the Presence of Moving Scatterers

“…Combined two-ring model and ellipse model, [6] obtains the space-time-frequency correlation function (STF-CF) and power spectral density (PSD) for the non-isotropic Ricean fading channels. As special cases of V2V channels, fixed-to-vehicle (F2V) channels are analyzed in [7,8] , and the statistics of angle-of-arrival (AOA), angle-of-departure (AOD) and time-of-arrival (TOA) of the channel are studied. All the above models assume the scatterers around transceivers are stationary.…”

Improved positioning algorithm based on linear constraints on scatterers

“…In addition, if we can successfully identify NLOS propagation or LOS propagation from related parameters, positioning accuracy would be improved very much. If the number of LOS is enough, positioning algorithms is independent of NLOS error [15,16]. However, in a real environment, the number of LOS is too small or zero.…”