An ATM-PON architecture for multimedia services
An ATM-PON system for an access network is proposed to support multimedia service efficiently. An ATM emulation layer (ATME) is newly defined above the PON section layer and placed on the same level as the ATM layer to carry ATM payload directly. The bi-directional 54 byte cell format including 6 byte header realizes high throughput. The grant for upstream transmission is controlled by VP level and yields flexible bandwidth allocation considering the Quality of Service.
KeywordsATM access network passive double star passive optical network
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