On the performance of Cost 231 Walfisch Ikegami model in deployed 3.5 GHz network

Propagation models predict received signal power level and are critical for the proper planning and deployment of wireless networks. As new technologies are utilizing higher frequencies in the RF spectrum, new propagation models and the tuning of existing models are required. This paper studies the COST 231 Walfisch Ikegami model (adopted originally for frequencies up to 2 GHz) to determine its validity in the 3.5 GHz WiMAX deployment. Field measurements of signal power of deployed WiMAX network are collected and compared to predicted values using the model. Root mean square error is used to compare line of sight (LOS) and non-line of sight (NLOS) conditions.

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