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Multicast Downstream Sharing Home Gateway using DBC-AD Message in DOCSIS 3.0-Based CATV Network
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- Authors
- Chang Hyo Lee, Eun Jo Lee, Sung Kwon Park, Ho Sook Lee
- Issue Date
- 2009-11
- Citation
- International Conference on Network Infrastructure and Digital Content (IC-NIDC) 2009, pp.296-301
- Language
- English
- Type
- Conference Paper
- Project Code
- 09MR4500, Development of IP-based High Speed Multimedia Transmission Technology for HFC Network, Lee Soo In
- Abstract
- In this paper, we present a method to receive multicast packets forwarded to a fiber node through a HG (Home Gateway) that has an advanced CM (Cable Modem) in a DOCSIS 3.0-based CATV network. As the CATV network is in a tree-and-branch structure, in case of forwarding multicast packets to a CM, they are forwarded to all the other CMs in the same fiber node. However, as all the other CMs do not join a multicast session with the CMTS (Cable Modem Termination System), those multicast packets are discarded. Therefore, we present a new method to receive multicast packets that are forwarded in the same fiber node by using a newly proposed DBC-AD (Dynamic Bonding Change-Advertisement) message that the CMTS transmits to a HG. The proposed method in a DOCSIS 3.0-based CATV network provides the bandwidth saving, and multicast packets can be forwarded without network delay through a HG. ©2009 IEEE.
- KSP Keywords
- Bandwidth saving, Branch structure, CATV network, Cable modem termination system, Home gateway, Multicast session, Network delay, dynamic bonding, new method