Adaptability of EPON to a virtual single cell network

In this paper, we study on the adaptation of EPON (Ethernet Passive Optical Network) mobile backhaul network to support the virtual single cell network. The virtual single cell network is a mobile network that offers fast movers no break handover for packet transfer by logical grouping adjacent small cells into virtual single cell. Due to constructing from a large number of small cells it requires cost-effective backhaul network. High speed PON is a good candidate for the mobile backhaul network since it can cost-effectively accommodate many terminals spread over the wide service areas. In our scope, we investigate adaptability of EPON mobile backhaul network into a virtual single cell network with modified WLAN interface shows (i) The EPON frame itself can be used for the virtual single cell network; (ii) The definition of mode bit in the preamble field should be modified; (iii) The mode bit meaning becomes to indicate communication types, point-to-point or multicast. The multicast here means limited broadcast to ONUs which possibly include a target terminal and transfer inhibit on the links under the OLTs which don't includes the target terminal; (iv) The broadcast communication should be indicated with LLID (Logical Link ID), not with the mode bit