More Results on the Validation of Gravity Model and the Effect of User Mobility in Cell Planning

Gravity model has recently proposed for use to predict the movement of cellular mobile subscribers. In this paper, additional data are collected and similar validation process is performed to further our investigation. The results also verify that Gravity model can be used to predict user movements accurately, with the exception that the computed number of trips needs to be scaled by a factor ranging from 0.98 to 0.99. The impact of user mobility on cell planning is then discussed. The optimal design can be obtained through performing multi-period joint optimization.