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IMS overlay network QoS routing mechanism

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4 Author(s)
Danqing Guo ; Beijing Univ. of Posts & Telecommun., Beijing, China ; Jun Huang ; Junping Wang ; Maoqiang Song

With services provided by mobile operators enriching and demands on quality of service increasing, to provide better services and make full use of the underlying network has become an urgent task. To solve these problems, the overlay network is proposed, it can make a virtual network on the basis of different physical networks. In this paper we make a discussion on the QoS framework of IMS overlay network. SMART architecture is faced with guiding media flow through specialized network nodes. SMART makes use of SSON for media delivery. This paper first describes the QoS framework of IMS, then comes up with an algorithm GRNSGA to solve IMS overlay network QoS routing NP problem by combing greedy algorithm with non-dominated sorting genetic algorithm. From the results we can see that after few iteration times, the population will converge to several non-dominated solutions. Time complexity of iteration in this algorithm is O(MN2).

Published in:

Broadband Network and Multimedia Technology (IC-BNMT), 2010 3rd IEEE International Conference on

Date of Conference:

26-28 Oct. 2010