The Challenges of Accurate Mobility Prediction for Ultra Mobile Users
Realistic modeling of user mobility is one of the most critical research areas in wireless networks. Currently, several mobility models are proposed based on the analysis of real WLAN traces. However, the large collection of WLAN usage traces, seem to capture little mobility from the users. This paper focuses on a subset of the wireless users, who use lightweight ultra mobile devices (i.e. VoIP devices). These users leave their devices on most of the time and the devices are light enough to walk-and-talk. Hence, these users show a more mobile (Ultra mobile) characteristic than laptop users while connected to the network.