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In future, various optical access systems will be deployed depending on the required data transmission capacity. For smooth migration, generic network management scheme is desired. In this paper, generic remote ONU management scheme by adopting the virtualization of logical channel in various optical access systems is described.
Hierarchical modulation is a technology for point-to-multipoint architectures that can simultaneously transmit multiple independent signals using a single wavelength/frequency. This paper reviews the principle of hierarchical modulation and introduces some application examples. For this interesting technology, we have proposed its use for coexistence of different generation passive optical networks...
Passive network elements such as splitter which compose ODN for PON provide advantages on the optical access network installation and management. However, as new customers for FTTH service are increasing, needs to manage ODN more intelligently is growing. In this paper, we introduce about Smart RN(Remote Node) and design its architecture. To gather the data about branching and connection information...
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