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This paper proposes a New Hashing and Caching strategy (NHC) in order to reduce the overall location management cost in wireless mobile networks. It uses caches whose up-to-date information is responsible for dropping this cost and these caches are updated not only at call arrival time from the calling Mobile Terminals (MTs) but also at call receiving time to those MTs, and even at location registration time. To achieve load balancing among replicated Home Location Registers (HLRs), hashing technique is used and this load is also affected by the up-to-date cache information.
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