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On the complexity of the regenerator placement problem in optical networks
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ACM Symposium on Parallel Algorithms and Architectures archive
Proceedings of the twenty-first annual symposium on Parallelism in algorithms and architectures table of contents
Calgary, AB, Canada
SESSION: Graph labeling/coloring table of contents
Pages 154-162  
Year of Publication: 2009
ISBN:978-1-60558-606-9
Authors
Michele Flammini  University of L'Aquila, L'Aquila, Italy
Alberto Marchetti Spaccamela  University of Rome, Rome, Italy
Gianpiero Monaco  University of L'Aquila, l'Aquila, Italy
Luca Moscardelli  University of Chieti-Pescara, Pescara, Italy
Shmuel Zaks  Technion, Haifa, Israel
Sponsors
SIGOPS: ACM Special Interest Group on Operating Systems
ACM: Association for Computing Machinery
SIGACT: ACM Special Interest Group on Algorithms and Computation Theory
Publisher
ACM  New York, NY, USA
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ABSTRACT

Placement of regenerators in optical networks has attracted the attention of recent research works in optical networks. In this problem we are given a network, with an underlying topology of a graph G, and with a set of requests that correspond to paths in G. There is a need to put a regenerator every certain distance, because of a decrease in the power of the signal. In this work we investigate the problem of minimizing the number of locations to place the regenerators. We present analytical results regarding the complexity of this problem, in four cases, depending on whether or not there is a bound on the number of regenerators at each node, and depending on whether or not the routing is given or only the requests are given (and part of the solution is also to determine the actual routing). These results include polynomial time algorithms, NP-complete results, approximation algorithms, and inapproximability results.


REFERENCES

Note: OCR errors may be found in this Reference List extracted from the full text article. ACM has opted to expose the complete List rather than only correct and linked references.

 
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Collaborative Colleagues:
Michele Flammini: colleagues
Alberto Marchetti Spaccamela: colleagues
Gianpiero Monaco: colleagues
Luca Moscardelli: colleagues
Shmuel Zaks: colleagues