@article{oai:nagoya.repo.nii.ac.jp:00013098,
 author = {KAKEHASHI, Shoji and HASEGAWA, Hiroshi and SATO, Ken-ichi},
 issue = {10},
 journal = {IEICE transactions on communications},
 month = {Oct},
 note = {This paper proposes new switch architectures for hierarchical optical path cross-connect (HOXC) systems. The architectures allow incremental expansion of system scale in terms of the number of input/output fiber ports, wavebands, and optical paths per waveband. These features assure the cost-effective introduction of HOXCs even at the outset when traffic volume is not so large. Furthermore the effectiveness of the proposed switch architectures is demonstrated in a comparison with single-layer OXCs (conventional OXCs). The results provide useful criteria for the introduction of HOXCs in terms of hardware scale.},
 pages = {3174--3184},
 title = {Optical Cross-Connect Switch Architectures for Hierarchical Optical Path Networks},
 volume = {E91-B},
 year = {2008}
}