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A Novel Ray Tracing Based Multipath Modeling Approach for Site-Specific WLAN Simulations

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6 Author(s)
Ting Zhou ; Comput. & Electron. Eng. Dept., Univ. of Nebraska-Lincoln, Omaha, NE, USA ; Sharif, H. ; Hempel, M. ; Mahasukhon, P.
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Current propagation models used in network simulations neglect obstacles of a propagation environment and employ over-simplified assumptions that the received signal strength is a simple function of distance and the transmission area of a node is circular. These assumptions are in contradiction with the actual tests and the measurement results. To run reasonable simulations for evaluating the performance of a specific outdoor wireless testbed, a novel multipath propagation framework is proposed in this paper, which is based on the ray tracing technique and uses site-specific geographic data of the analyzed area. It provides accurate propagation predictions, and it does not significantly prolong the simulation duration.

Published in:

Communications, 2009. ICC '09. IEEE International Conference on

Date of Conference:

14-18 June 2009

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