2nd International ICST Workshop on Guaranteed Optical Service Provisioning

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
S.W. Huang 1, K. Baba2, M. Murata3, K. Kitayama1
  • 1: Graduate School of Engineering, Osaka University, Osaka, Japan
  • 2: Cybermedia Center, Osaka University, Osaka, Japan
  • 3: Graduate School of Information Science and Technology, Osaka University, Osaka, Japan

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.