A batch-update strategy for the distributed HLRs architecture in PCS networks

Hang Wen Hwang, Chien-Chao Tseng*, Ming-Feng Chang

*Corresponding author for this work

研究成果: Article同行評審

摘要

Owing to the increasing population of mobile subscribers, the rapidly expanding signaling traffic has become a challenge to the mobility management in PCS networks. Multiple database schemes to reduce signal traffic and to solve the bottleneck problem of the single home location register (HLR) architecture have been proposed by many researchers. However, in most of the multiple location databases or HLR systems, extra signaling is required for the multiple database updates. We propose a batch-update strategy, instead of the immediate update method, for the location-tracking schemes with replication to reduce the signaling overhead. In this paper, we first introduce a distributed HLRs architecture in which each HLR is associated with a localized set of VLRs and the location registrations and queries are processed locally. Then we propose our batch-update strategy and present two pointing schemes for inter-HLR call deliveries. The numerical result shows that our approach can effectively decrease the signaling cost of location registration and call delivery compared with the IS-41 standard.

原文English
頁(從 - 到)311-327
頁數17
期刊Wireless Communications and Mobile Computing
3
發行號3
DOIs
出版狀態Published - 1 五月 2003

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