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When we are talking about the Mobile devices in terms of mobile computing the management of location information for mobile devices is an important issue in mobile computing systems. It is one of the fundamental issues while managing the cellular networks. It deals with how to track subscribers on the move and how to update his or her movements. In mobile communication environment, they are going to accommodate more and more users with one base station; the size of the cell must be reduced to make more efficient use of the limited frequency spectrum allocation. This will add to the challenge of some fundamental issues in cellular networks. Location management consists of updating the location of the user, searching the location and performing search-updates