Multicast Routing Protocol in Cellular IPv6 Network

• Main Authors: Shin-Wei Wu, 吳世瑋
• Other Authors: Hsiao-Kuang Wu
• Format: Others
• Language: en_US
• Published: 2002
• Online Access: http://ndltd.ncl.edu.tw/handle/63283336351455527445

碩士 === 國立中央大學 === 資訊工程研究所 === 90 === This article explores the possibility to extend the multicast services from Mobile IP network to Cellular IP network, a complementary solution for supporting micro-mobility with Mobile IP in the 3GPP2 architecture. In IETF Mobile IP, two approaches, remote subscription and bi-directional tunneling, are proposed to achieve the mobile multicast services. Remote subscription, a simple but intuitional approach allows mobile hosts to participate in the multicast group of interest directly and takes advantage of optimal routing path and simplicity. As to bi-directional tunneling, it relies on unicast Mobile IP tunneling from the home agent of mobile hosts. Namely, Multicast datagrams are routed to the home agent first and from where those packets are encapsulated with care-of-address of the mobile host and tunneled to the visited subnet. However, bi-directional tunneling isn’t suitable for multimedia service delivery due to its inefficient routing path and delay while it suffers from no packet loss. Besides, duplicated datagrams waste network resources as well. We propose a novel approach integrating the main features of remote subscription and bi-directional tunneling to make multicast enable in Cellular IP network by considering the numbers of datagrams flowing in Cellular IP network. The feasibility is also surveyed while this approach is applied to IPv6 environment. The performance was evaluated by simulations and mathematical analysis.