KSII Transactions on Internet and Information Systems (TIIS)

Korean Society for Internet Information (한국인터넷정보학회)
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Integration of Multipath Transmission into the IMS Framework

  • Liu, Shaowei (School of Computer Science and Engineering, Northeastern University) ;
  • Lei, Weimin (School of Computer Science and Engineering, Northeastern University) ;
  • Zhang, Wei (School of Computer Science and Engineering, Northeastern University) ;
  • Li, Hao (School of Computer Science and Engineering, Northeastern University)
  • Received : 2017.02.16
  • Accepted : 2017.05.03
  • Published : 2017.08.31
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Abstract

IP multimedia subsystem (IMS) is an open standardized architecture for delivering multimedia service over IP network in a route-agnostic manner. With the increasing popularity of conversational class service, the delivery of a traffic flow with a certain bandwidth demand over a single network path is either not possible or not cost-effective. Multipath transmission is considered to be a promising solution to provide high-quality delivery service. This paper proposes a software defined service overlay network (SDSON) based multipath transmission framework for IMS, which is complementary to existing network architecture. The framework transforms original two-party session negotiation into three-party session negotiation that supports participants to negotiate multipath transmission capacity and path information by signaling message. Based on existing IETF standards, SIP and SDP are scalable to support these functions. Finally, the proposed framework is fully implemented on open source platform and examined by experiments. Experimental results show that multipath-enabled IMS is an effective way to improve the delivery performance of conversational class service.

Keywords

References

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