ETRI Journal

  • 제31권5호
  • /
  • Pages.534-544
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  • 2009
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  • 1225-6463(pISSN)
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  • 2233-7326(eISSN)
한국전자통신연구원 (Electronics and Telecommunications Research Institute)
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Multi-constrained Shortest Disjoint Paths for Reliable QoS Routing

  • Xiong, Ke (Institute of Information Science, Beijing Jiaotong University) ;
  • Qiu, Zheng-Ding (Institute of Information Science, Beijing Jiaotong University) ;
  • Guo, Yuchun (School of Electronics and Information Engineering, Beijing Jiaotong University) ;
  • Zhang, Hongke (School of Electronics and Information Engineering, Beijing Jiaotong University)
  • 투고 : 2008.09.24
  • 심사 : 2009.06.24
  • 발행 : 2009.10.31
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초록

Finding link-disjoint or node-disjoint paths under multiple constraints is an effective way to improve network QoS ability, reliability, and so on. However, existing algorithms for such scheme cannot ensure a feasible solution for arbitrary networks. We propose design principles of an algorithm to fill this gap, which we arrive at by analyzing the properties of optimal solutions for the multi-constrained link-disjoint path pair problem. Based on this, we propose the link-disjoint optimal multi-constrained paths algorithm (LIDOMPA), to find the shortest link-disjoint path pair for any network. Three concepts, namely, the candidate optimal solution, the contractive constraint vector, and structure-aware non-dominance, are introduced to reduce its search space without loss of exactness. Extensive simulations show that LIDOMPA outperforms existing schemes and achieves acceptable complexity. Moreover, LIDOMPA is extended to the node-disjoint optimal multi-constrained paths algorithm (NODOMPA) for the multi-constrained node-disjoint path pair problem.

키워드

참고문헌

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피인용 문헌

  1. An Efficient Approximate Algorithm for Disjoint QoS Routing vol.2013, pp.None, 2013, https://doi.org/10.1155/2013/489149
  2. A Path-Counter Method for Fault-Tolerant Minimal Routing Algorithms in 2D Mesh vol.27, pp.4, 2009, https://doi.org/10.1142/s0218126618500548