@article{oai:nagoya.repo.nii.ac.jp:00010227,
 author = {Ishii, Kiyo and Hasegawa, Hiroshi and Sato, Ken-ichi},
 journal = {Photonics in Switching},
 month = {Aug},
 note = {We propose a wavelength assignment algorithm for full mesh node connectivity of two connected,  bidirectional ring networks. It is proved to minimize the necessary number of wavelengths. We also propose novel ring-connecting nodes that can reduce switch size by 90-50% compared to conventional arrangement.},
 pages = {27--28},
 title = {Simple Node Architectures for Connection of Two ROADM Rings Using Hierarchical Optical Path Routing},
 year = {2007}
}