A varying per user profile based location update strategy for cellular networks

In the present work, a profile based location management scheme is proposed. The proposed scheme considers each user's profile which varies from time to time. It maintains a database where the profile of each user is stored every /spl tau/ units of time. The algorithm treats every user either as LFPC (less frequent profile changer) or FPC (frequent profile changer) depending on its profile for the last /spl tau/ units of time. Cost estimation with this scheme is also done which shows only database updating cost as paging is confined to only one cell. Exhaustive simulation work is done to study the variation of updating cost with different parameters. Finally a comparison is also made between the present scheme and a scheme where no categorization like LFPC or FPC is made.