Bandwidth Provisioning Architecture in Backhaul
نویسنده
چکیده
the Metro Ethernet Forum has defined a set of Ethernet Virtual Connection services that are adopted to provide scalable Ethernet transport for mobile backhaul. However, these services usually address single cell site backhaul per UNI handoff, not considering statistical multiplexing gain at a hub site which aggregates backhaul traffics of multiple cell sites backhaul pipe. This paper proposed an efficient carrier Ethernet bandwidth provisioning architecture for mobile backhaul with cellular cluster. A statistical estimation scheme has been developed for deriving a safe overbooking factor at a given User-Network-Interface. Then an efficient QinQ transport architecture was proposed to support bandwidth sharing in cellular cluster with overbooked backhaul bandwidth in carrier Ethernet. Experimental data analysis have showed that our new schemes can benefit mobile operators in resource utilization efficiency, carrier Ethernet cost saving and backhaul performance. KeywordsMobile backhaul, overbooking, Carrier Ethernet, UNI handoff, CIR, SLA _______________________________________________________*****____________________________________________________
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