TY - JOUR
T1 - Grooming in unidirectional rings
T2 - K4 - e designs
AU - Bermond, Jean Claude
AU - Colbourn, Charles
AU - Ling, Alan C H
AU - Yu, Min Li
N1 - Funding Information:
Research of the first author was supported by the European project CRESCCO. Research of the second and third authors is supported by the Army Research Office under ARO grant DAAD19-01-1-0406. The fourth author thanks CNRS-INRIA-UNSA for the support and hospitality of the MASCOTTE project where some of the research was done during his visit. All authors thank the two referees for their helpful comments.
PY - 2004/7/6
Y1 - 2004/7/6
N2 - In wavelength division multiplexing for unidirectional rings, traffic grooming is used to pack low rate signals into higher rate streams to share a wavelength. The grooming chosen determines the number of add-drop multiplexers used for the optical-to-electronic conversion. The determination of groomings to use the fewest multiplexers is equivalent to a graph design problem, which has been solved when up to four signals can be packed into a stream. We completely settle the case here when five signals pack into one stream, using old and new results on (K4-e)-designs.
AB - In wavelength division multiplexing for unidirectional rings, traffic grooming is used to pack low rate signals into higher rate streams to share a wavelength. The grooming chosen determines the number of add-drop multiplexers used for the optical-to-electronic conversion. The determination of groomings to use the fewest multiplexers is equivalent to a graph design problem, which has been solved when up to four signals can be packed into a stream. We completely settle the case here when five signals pack into one stream, using old and new results on (K4-e)-designs.
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U2 - 10.1016/j.disc.2003.11.023
DO - 10.1016/j.disc.2003.11.023
M3 - Article
AN - SCOPUS:2942659493
SN - 0012-365X
VL - 284
SP - 57
EP - 62
JO - Discrete Mathematics
JF - Discrete Mathematics
IS - 1-3
ER -