Research Article
Evaluation of OCDM-Switching and Code Conversion for All-Optical End-to-End Path Provisioning in Multi-granularity Networks
@INPROCEEDINGS{10.1109/BROADNETS.2006.4374417, author={S.W. Huang and K. Baba and M. Murata and K. Kitayama}, title={Evaluation of OCDM-Switching and Code Conversion for All-Optical End-to-End Path Provisioning in Multi-granularity Networks}, proceedings={2nd International ICST Workshop on Guaranteed Optical Service Provisioning}, publisher={IEEE}, proceedings_a={GOSP}, year={2006}, month={10}, keywords={}, doi={10.1109/BROADNETS.2006.4374417} }- S.W. Huang
K. Baba
M. Murata
K. Kitayama
Year: 2006
Evaluation of OCDM-Switching and Code Conversion for All-Optical End-to-End Path Provisioning in Multi-granularity Networks
GOSP
IEEE
DOI: 10.1109/BROADNETS.2006.4374417
Abstract
In this paper, an OCDM-based multi- granularity optical cross-connect (MG-OXC) is proposed to enable the optical path switching in bandwidth granularity finer than the wavelength-based path. Such an optical path switched by OCDM-based MG-OXC is called OCDM label-switched path (OCDM-LSP), which is capable of hybrid optical code (OC)/wavelength conversion along the path from a source to destination. With distinct OCs, OCDM-LSPs can share a single wavelength without any synchronization mechanism and be discriminated by ultra- fast optical correlation. The asynchronous ability and OC conversion distinguish the OCDM-LSP from Packet-LSP or TDM-LSP in resolving granularity problem in wavelength- based path. Based upon our proposal, all-optical optical path provisioning including F-LSP, WB-LSP, L-LSP and OCDM- LSP can be realized in the transport layer. Simulation is conducted and the results show the proposed OCDM-switching has gained a 2 order of blocking probability reduction even though only 5 OCs are employed. Furthermore, OC conversion in OCDM-LSP is proved to be another benefit for high flexibility in optical path provisioning and blocking performance improvement comparing to TDM-LSP.