Active location reporting for emergency call in UMTS IP multimedia subsystem

Meng-Hsun Tsai, Yi Bing Lin, Hsiao Han Wang

研究成果: Article同行評審

11 引文 斯高帕斯(Scopus)

摘要

The IP Multimedia Core Network Subsystem (IMS) provides multimedia services for Universal Mobile Telecommunications System (UMTS). In IMS, an emergency call is established by an Emergency-Call Session Control Function (ECSCF). The E-CSCF dispatches the call to the nearest Public Safety Answering Point (PSAP) according to the location of the caller. After emergency call setup, the caller's location is tracked by the PSAP through Location Polling. This paper investigates the performance of location tracking. Then we propose the Active Location Reporting scheme to improve the performance of location tracking. Our study indicates that the Active Location Reporting scheme may significantly outperform the Location Polling scheme.

原文English
文章編號5351703
頁(從 - 到)5837-5843
頁數7
期刊IEEE Transactions on Wireless Communications
8
發行號12
DOIs
出版狀態Published - 2009 十二月 1

All Science Journal Classification (ASJC) codes

  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Applied Mathematics

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