Performance analysis of the distance-based location update mechanism of CDMA 1X EV-DO

In this paper, we investigate the distance-based location update approach of CDMA 1X EV-DO´s route update protocol. We develop an analytical model to compare its performance with that of the static location update approach of earlier cellular technologies. We show that, for the same paging delay and cost, the distance-based approach reduces the overhead traffic due to location update messages. In addition, this reduced loading is equally shared among all cells in the distance-based approach, while it is confined to the border cells in the static approach. We also introduce the non-uniform neighbor choice approach to model mobility more accurately and study its impact on the performance of the two algorithms. Using simulations we study a different mobility model, and the simulation results confirm the benefits of the distance-based approach of 1X EV-DO