Ethernet passive optical network (EPON) system with storage function

Abstract

Ethernet Passive Optical Network (EPON) is an emerging access network technology that provides high bandwidth and cost-effective access lines between a carrier's central office (CO) and a customer site. But limited bandwidth is still a problem in EPON system. In this paper, we propose a new architecture for EPON system with storage function. Storage is embedded in optical network unit (ONU) to store data especially video data by checking the Logical Link Identifier (LLID). Subscribers can retrieve the data directly from the storage by sending requests to ONUs.