AG Kommunikationstheorie

Thema:

SDR-Based Channel Emulator using a Semi-Stochastic Radio Propagation Model

Abstract:

We present the design of a low cost Software Defined Radio Based Channel Emulator. The proposed system can be used to emulate channels for link level testing of any of type radio equipment. It comprises of one or multiple RF frontends at the input, respectively output side. Different channel models can be easily exchanged due to the software defined nature of the system. However, in this work we focus on a semi-stochastic, ray-tracing based urban channel model. The model combines advantages of a site specific physical model with a geometry based stochastic model. Being optimized for signal strength prediction and network planning, the ray-tracer is not able to simulate small scale effects like antenna diversity or doppler spread, yet the gap can be closed by the stochastic part of the model.



zurück zur Terminübersicht