Sungkyunkwan University

Hyun Seung Choo

Tae-Jin Lee

Min Young Chung

Muhammad Raza Syed

Se Il Jeon

Tien Dung Nguyen

Young Kyoung Kim

Jae Yeop Jeong

Myoung Beom Chung

Tae Woo Lee

Sung Ho Myoung

A method for managing a mobile node of an SDN controller according to an aspect of the present disclosure includes receiving a router solicitation message of a mobile node transmitted through a first AP operated by the SDN controller.

Method and device for managing mobile node of SDN controller

Disclosed is a system and a method for polling in an Ethernet Passive Optical Network (EPON). The system includes: multiple Optical Network Units (ONUs) for sharing optical channels of the EPON with one another and transmitting traffic; and an Optical Line Terminal (OLT) for discriminating a plurality of ONUs gaining access to the EPON among the multiple ONUs and then collecting routing information on the plurality of ONUs gaining access to the EPON, and for classifying the plurality of ONUs gaining access to the EPON into two or more ONU groups according to the collected routing information and then carrying out forming a polling cycle and allocating bandwidth on each ONU group. Therefore, a transmission idle period in a traffic channel is not only minimized, but an availability ratio of traffic channels can also be maximized.

System and method for polling in ethernet passive optical network

Growing community of inventors

Gwacheon-si, South Korea

Hyun Seung Choo