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Dedong Hu - IEEE Xplore Author Profile

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Virtual network mapping is a hot issue over the past decade, which aims to map virtual networks to the underlying network as required. This procedure is a NP-hard question, therefore many previous algorithms just impose some constraints or use simple heuristic method to get the relative optimal result. Traditional researches almost focus on two independent stages: node embedding and link mapping. ...Show More
We propose two new algorithms called BiLAD and ExactBiLAD for the well-known Single-Constrained Shortest Path (SCSP) problem. It is a fundamental problem in quality-of-service (QoS) routing, where one seeks a source-destination path with the least cost satisfying a delay QoS constraint in a network. As pointed out by Jüttner et al., there is no widely accepted algorithm with polynomial time to the...Show More