• Summary
• Related Documents
  • Active Bibliography
  • Co-citation
• Version History

Abstract:

In this paper, we propose an extension to personal communication service (PCS) location management protocol which uses dynamically overlapped registration areas. Overlapping of registration areas helps in reducing the number of location updates for a fixed mobility pattern. Further, dynamically changing the registration area is used to adapt to changes in aggregate mobility and call pattern. This reduces and balances the signaling and database access load on the mobile services stations (MSS). The scheme is based on monitoring the aggregate mobility and call pattern of the users during each reconfiguration period and adapting to mobility and call pattern by either expanding or shrinking registration areas at the end of each reconfiguration period. A MSS expands its associated registration area by including boundary communication cells from neighboring registration areas in its own registration area. However, expanding a registration area increases the cost of call delivery (location search operation). We analytically characterize the tradeoff resulting from inclusion or exclusion of a cell in a registration area in terms of expected change in aggregate database access cost and signaling overhead. This characterization is used to guide the registration area adaption in a manner in which the signaling and database access load on any give MSS does not exceed a specified limit. In order to study the adaptiveness of the proposed scheme, we have simulated our scheme under various mobility

Citations