Adaptation of Angle-of-Arrival Estimation in Mobile Communications Using Geometrically Based Channel Models

Channel modeling is considered a way of simulating and studying RF channels. A channel model can perform the function of producing the channel output parameters, such as multipath delays, and signal direction of arrival. Geometrically based channel models are introduced by defining a propagation environment with a specific geometrical layout. This work focuses on geometrically based single bounce elliptical model, GBSBEM and geometrically based single bounce circular model, GBSBCM because of their ability to produce spatial channel characteristics that are tied to the physical propagation environment. Simulations that represent and implement the geometry of the channel for both models are designed and analyzed using Matlab software. A thorough study of the channel output parameters AOA, TOA, and joint AOA-TOA probability density functions is carried out. The impact of the geometric channel parameters on adaptation of AOA estimation is illustrated..