B. G. Bathula, R. K. Sinha, A. Chiu, M. D. Feuer, G. Li, S. L. Woodward, W. Zhang, K. Bergman, I. Kim, and P. Palacharla, "On Concentrating Regenerator Sites in ROADM Networks,"
in National Fiber Optic Engineers Conference,
OSA Technical Digest
(Optical Society of America, 2012), paper NW3F.6.
Concentrating optical regenerators in a subset of nodes provides significant savings. We present a heuristic for choosing this subset. In the studied cases our results have 1 or 2 more sites than the minimum.