Improving inter-destination synchronization in hierarchical reliable multicast

Sang Seon Byun, Chuck Yoo

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


In hierarchical reliable multicast schemes, the number of repair proxies and their locations influence inter-destination synchronization. The inter-destination synchronization in multicast environments means the adjustment of the output timing among destinations over the Internet. Improving the inter-destination synchronization is beneficial to collaborative applications such as multi-conference system and multi-playing online game. In this paper, we propose a scheme to find the optimal locations of repair proxies that can improve inter-destination synchronization maximally in heterogeneous network environments. The simulation results show that if repair proxies are placed by the proposed scheme, delivery delay fairness of inter-destination can be improved by 0.05 maximally. In addition, we perform t-Test on the simulation results in order to verify that our optimal placement improves synchronization.

Original languageEnglish
Pages (from-to)203-216
Number of pages14
JournalTelecommunication Systems
Issue number4
Publication statusPublished - 2008 Apr

Bibliographical note

Funding Information:
Acknowledgements This work was carried out during the tenure of an ERCIM “Alain Bensoussan” Fellowship Programme.


  • Dynamic programming
  • Hierarchical reliable multicast
  • Inter-destination synchronization
  • Repair proxy

ASJC Scopus subject areas

  • Electrical and Electronic Engineering


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