Group location update scheme and performance analysis for location management in mobile network

The group location update scheme in which a group location update was performed by a leader mobile terminal instead of individual update by every normal mobile terminal has been proposed. A stochastic service system model was also built to analyze the group location update scheme and individual location update scheme in the view of channel access cost. Compared with individual location update scheme, group location update scheme obviously increases channel capability and system throughput due to a significant reduction in signaling cost per update and the number of location updates. As user mobility increases or the number of users in the group increases, the advantage of the group update scheme improves.