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High‐reliability grid architecture supporting discretionary and efficient communication between ONUs in metro‐access optical network
Author(s) -
Shao Qi,
Zhao Yujing,
Chen Yuanyuan,
Gan Chaoqin
Publication year - 2019
Publication title -
international journal of communication systems
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.344
H-Index - 49
eISSN - 1099-1131
pISSN - 1074-5351
DOI - 10.1002/dac.4086
Subject(s) - computer science , computer network , reliability (semiconductor) , node (physics) , architecture , optical line termination , grid , passive optical network , network topology , topology (electrical circuits) , wavelength division multiplexing , engineering , electrical engineering , wavelength , art , power (physics) , physics , geometry , mathematics , optoelectronics , structural engineering , quantum mechanics , visual arts
Summary Direct communication of optical network units (ONUs) is an important function in metro‐access optical network. In this paper, a grid architecture supporting discretionary and efficient communication between ONUs is proposed. The grid architecture is built by using two interconnecting fibers to connect every two ONUs; this can give protection to every ONU by four ONUs. Additionally, the network reliability can be improved greatly. Grid topology of ONUs leads to their discretionary direct communication. In this topology, direct communication signal can be transmitted from one ONU to another ONU directly, rather than being returned to remote node central office. Also, the efficiency of direct communication can be improved remarkably with the proposed architecture. Finally, the performance analyses and the simulation results verify the feasibility of the proposed architecture. When the n reaches to 10, the reliability of downstream and direct communication signals is all larger than 99.993%.