Advanced and Computationally Efficient Ray-Tracing Method for Propagation Prediction in Urban Environment
نویسندگان
چکیده
This paper presents a fast ray tracing procedure based on triangular division of the propagation environments. Unlike some accelerating methods based on pre-establishment of visibility, this method does not need the position information of base station and/or receiving antennas and is thus more general. Although the triangulation is in a two-dimensional plane, this method is suitable for three-dimensional cases when proper data structure for buildings is constructed. Validation results showed good agreement between calculated and measured data from the European COST 231 project. The improvement in the computational efficiency was clearly demonstrated in examples.
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