RECENT ADVANCES IN RADIO CHANNEL PARAMETER ESTIMATION FROM CHANNEL SOUNDING MEASUREMENTS

In this paper we address the problem of parametric channel estimation in channel sounding. In the first part we will give an overview of radio channel data models developed in recent years. Most commonly used parametric radio channel estimation techniques employ a deterministic data model based on a finite number of specular propagation paths only. However, it has been shown, that this data model may not sufficiently describe radio channel observations. The channel model has also to account for diffuse scattering in the channel. We will outline a means to include local and distributed scattering in the channel model. In the second part, a short survey of estimation techniques developed to determine the related model parameters is given. I