Multicast for multimedia delivery in wireless network

  • Authors:

  • Backhyun Kim;Taejune Hwang;Iksoo Kim

  • Affiliations:

  • Department of Information and Telecommunication Engineering, University of Incheon, Incheon, Korea;Department of Information and Telecommunication Engineering, University of Incheon, Incheon, Korea;Department of Information and Telecommunication Engineering, University of Incheon, Incheon, Korea

  • Venue:
  • APWeb'06 Proceedings of the 2006 international conference on Advanced Web and Network Technologies, and Applications
  • Year:
  • 2006

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Abstract

In this paper we propose a novel technique for multimedia service using multicast delivery in wireless network. It supports seamless multimedia service that uses basic tree and their neighboring mobile nodes (NMNs) in wireless network. The basic trees are generated based on hop-counts from each mobile node (MN) toward base node (BN). Each MN has some NMNs (1-hop away) which are composing the upper, lower or peer MNs within its transmission range and are located at different basic trees. MN joins to a specific multicast (Mcast) group through its basic tree. For protecting seamless service according to mobility of MNs that have already joined Mcast group, those MNs send periodically Mcast join message to their NMNs when they move to the other basic trees, and registers to those basic trees. In this case NMNs that received Mcast join message send it to their upper MN over the same basic tree when they don’t join Mcast group just like wired Mcast. But the MNs on the new basic tree do not send Mcast streams until the moved MN registers to a new basic tree for reducing the amount of traffic.