An efficient location management scheme for PCS networks

This paper investigates a new location management scheme for improving the basic location strategy proposed in the IS-41 standard. This scheme essenti ally consists of adding to the current network architecture a pointer table and a location data table. A pointer table is provided for each location a rea (LA) where it tracks the MUs that have moved out of this LA. The locati on data table located on a local signal transfer point (LSTP) node contains the data location of the MUs frequently called from the LAs connected to t his LSTP. These two tables contribute to reduce significantly the cost of b oth location update and call delivery procedures. Computational results ind icate that the amount of reduction obtained depends on the value of the cal l to mobility ratio of the MUs. (C) 2001 Elsevier Science B.V. All rights r eserved.