A Profile-Based Two-Level Pointer Forwarding Cache Scheme for Reducing Location Management Cost in Wireless Mobile Networks

作者: Md. Mohsin Ali , Md. Ziaur Rahman Khan , Md. Ashraful Alam

DOI: 10.5120/744-1052

关键词: Centralized databaseVisitor patternCacheWirelessPointer (computer programming)Computer scienceReal-time computingComputer network

摘要: this paper we propose an efficient location management strategy called the profile#based two#level pointer forwarding cache scheme to improve overall performance of wireless mobile networks. It uses twolevel for update and profilebased call delivery. Loca tion each Mobile Terminal (MT) is managed by nearby Visitor Location Register (VLR) until it crosses threshold number movements between Registration Areas (RAs). This reduces frequency accessing remote Home (HLR) which eventually minimizes cost distributing its work. On other hand, a profile MT's calling pattern maintained in HLR copied VLR caches from where majority calls are generated. These searched first find out order deliver call. delivery will be reduced if information found since does not have access searching information. The analytical modeling numerical results show that proposed method outperforms all previous methods terms network signaling traffic load irrespective MTs' mobility pattern. Switching Center (MSC) MTs wirelesscon nected these BTS. Sometimes may colocate with MSC group RAs interfaced Local Signaling Transfer Point (LSTP) following HLR. An centralized database contains records profiles together entire network. Similarly, stores replications user subscribers currently residing corresponding RA. However, there exist one or more HLRs depending on configuration. Figure 1 shows architecture

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