Topology-aware fanout set division scheme for QoS-guaranteed multicast transmission

Kyungmin Kim, Jaiyong Lee

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


The proliferation of realtime multimedia services requires huge amounts of data transactions demanding strict quality-of-service (QoS) guarantees. Multicast transmission is a promising technique because of its efficient network resource utilization. However, high head-of-line (HOL) blocking probability and lack of service-specific QoS control should be addressed for practical implementations of multicast networks. In this paper, a topology aware fanout set division (TAFD) scheme is proposed to resolve these problems. The proposed scheme is composed of two techniques that reduce HOL blocking probability and expedite packet delivery for large-delay branches regarding multicast tree topology. Since management of global topology information is not necessary, scalability of the proposed scheme is guaranteed. Mathematical analysis investigates effects of the proposed scheme and derives optimal operational parameters. The evaluation results show that the TAFD scheme achieves significant delay reduction and satisfies required delay bounds on various multicast networks.

Original languageEnglish
Article number6713778
Pages (from-to)614-634
Number of pages21
JournalJournal of Communications and Networks
Issue number6
Publication statusPublished - 2013

All Science Journal Classification (ASJC) codes

  • Information Systems
  • Computer Networks and Communications


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