Outdoor/indoor propagation prediction for complex wall and window structures using ray-tracing models

A new integrated ray-tracing code for propagation prediction in the urban environment is developed. Besides the computationally efficient core engine that is based on the triangle and rectangular digitization of the propagation environment (hence eliminating the need for the time consuming search algorithms), new indoor and indoor/outdoor features such as reflection and transmission through complex walls and diffraction effects from windows and metal framed structures are also included in the new code. The accuracy of each of these components is validated experimentally and results from the integrated code are presented and discussed in the conference.