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- W2006543170 abstract "An important aspect of quality-of-service (QoS) provisioning in integrated networks is the ability to find a feasible route that satisfies a set of end-to-end QoS requirements (or constraints) while efficiently using network resources. In general, finding a path subject to multiple additive constraints (e.g., delay, delay-jitter) is an NP-complete problem. We propose an efficient randomized heuristic algorithm to this problem. Although the algorithm is presented as a centralized one, the idea behind it can also be implemented in a distributed manner. Our algorithm initially computes the cost of the best path from each node to a given destination with respect to individual link weights and their linear combination. In this initialization step, Reverse–Dijkstra's algorithm is used K+1 times per path request, where K is the number of additive constraints. The algorithm then randomly traverses the graph, discovering nodes from which there is a good chance of reaching the final destination. This randomized search is a modification of the breadth-first search (BFS). Using extensive simulations, we show that the proposed algorithm provides better performance than existing algorithms under the same order of computational complexity." @default.
- W2006543170 created "2016-06-24" @default.
- W2006543170 creator A5011209223 @default.
- W2006543170 creator A5081934496 @default.
- W2006543170 date "2001-07-01" @default.
- W2006543170 modified "2023-09-23" @default.
- W2006543170 title "A randomized algorithm for finding a path subject to multiple QoS requirements" @default.
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- W2006543170 doi "https://doi.org/10.1016/s1389-1286(00)00209-7" @default.
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