Multi-Granular OXC Node Based on Lambda-Group Technology

YiYun WANG  Qingji ZENG  Chen HE  Lihua LU  ZhiCheng SUI  

IEICE TRANSACTIONS on Communications   Vol.E89-B   No.6   pp.1883-1887
Publication Date: 2006/06/01
Online ISSN: 1745-1345
DOI: 10.1093/ietcom/e89-b.6.1883
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Switching for Communications
multi-granularity,  traffic grooming,  GMPLS,  lambda-group,  OXC,  

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We develop a new optical switching fabric with multi-granularity grooming based on our lambda-group model, as well as algorithms that can handle dynamic environments. The proposed fabric based on a new multi-granular grooming scheme presents the distinctive approach of assigning different contiguous groups of granularities to different paths for effective treatment. Results and figures from experiments show that the particular partitioning approach not only is helpful to port reduction significantly, but also improves the SNR of signal and blocking performance for dynamic connection requests.