KSII Transactions on Internet and Information Systems (TIIS)

Korean Society for Internet Information (한국인터넷정보학회)
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Advanced Path-Migration Mechanism for Enhancing Signaling Efficiency in IP Multimedia Subsystem

  • Chang, Kai-Di (Department of Electrical Engineering, National Taiwan University of Science and Technology) ;
  • Chen, Chi-Yuan (Department of Electrical Engineering, National Dong Hwa University) ;
  • Hsu, Shih-Wen (Department of Electrical Engineering, National Dong Hwa University) ;
  • Chao, Han-Chieh (Department of Electrical Engineering, National Dong Hwa University) ;
  • Chen, Jiann-Liang (Department of Electrical Engineering, National Taiwan University of Science and Technology)
  • Received : 2011.07.21
  • Accepted : 2012.01.07
  • Published : 2012.01.30
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Abstract

Since Internet Protocol (IP) is the most important protocol in Next Generation Networks (NGNs), 3rd Generation Partnership Project (3GPP) utilizes Session Initial Protocol (SIP) based on IP as the base protocol for negotiating sessions in IP Multimedia Subsystem (IMS). Different from traditional circuit-switched network, in IMS, the media traffic and signaling are delivered through IP transport. The media traffic may affect the signaling efficiency in core network, due to traffic collisions and best effort packets delivery. This paper proposes a novel path-migration mechanism for enhancing the traffic efficiency in integrated NGN-IMS. The simulation results show that the interference and traffic collision can be reduce by applying proposed path-migration mechanism and the signaling efficiency in core network can be improved with higher system capability and voice quality.

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References

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