Electronics and Telecommunications Research Institute

Research & Industrial Cooperation Group

Bok Rae Jung

Byoung Whi Kim

Nam Uk Kim

Tae Yeon Kim

Jeong Ju Yoo

Min Ho Kang

Hyun Ho Yun

Jae Gwan Kim

The present provides a method of dynamically managing multicast groups and allocating multicast service wavelengths for the highest channel efficiency. According to the present invention, the share indices of wavelengths of all multicast service groups, which employ broadcasting wavelengths and data wavelengths, are periodically ascertained on the basis of IGMP snooping-based technology in a WDM-PON. Based on the ascertainment results, if the channel share index of the group that employs the broadcasting wavelength is smaller than the channel share index of the group that employs the data wavelength, the share index of the wavelength of the multicast group that employs the broadcasting wavelength is maximized by dynamically changing allocation of the wavelength of the multicast group, so that a maximum multicast service can be provided within limited resources.

Dynamic multicast group management and service wavelength allocation method for communication-broadcasting convergence service in WDM-PON

Growing community of inventors

Daejeon, South Korea

Bok Rae Jung