For a wireless network to effectively deliver services to the mobile users, it must have an efficient way to keep track of them. For the next generation wireless multimedia networks which can provide wide bandwidth services, the radio resource becomes more competitive. Many strategies have been proposed to reduce the spectrum consumption of the users location update and paging messages, such as the PBS scheme. In this paper, we study the PBS scheme performance under various conditions by simulations. We also propose a new scheme - MPBS which includes user time information in the profile. The user location is computed by the system based on not only the distribution probability but also the system current time. The simulation results suggest that the MPBS scheme can generate far less signaling traffic and paging delay than the PBS scheme does.
['Wenchao Ma', 'Yuguang Fang']
A user mobility-pattern-based location strategy for next generation wireless multimedia networks