Wireless Networks

, Volume 17, Issue 1, pp 119–131 | Cite as

Multicasting multimedia streams in IEEE 802.11 networks: a focus on reliability and rate adaptation

  • Nakjung Choi
  • Yongho Seok
  • Taekyoung Kwon
  • Yanghee Choi
Article
First Online:

Abstract

Multicasting multimedia streams in IEEE 802.11 wireless LANs has two issues: reliability and rate adaptation. We address these issues by proposing two mechanisms that augment the current multicasting standards in a backward-compatible fashion. Semi-reliable multicasting (SRM) selects a leader who sends feedback information to lessen the reliability problem of multicast frames. Probing-based auto-rate fallback (PARF) allows the multicast source to adjust the bit rate depending on the link conditions of multicast recipients. Comprehensive simulation experiments reveal that SRM + PARF achieves reliability and link efficiency close to those of an omniscient multicasting framework.

Keywords

IEEE 802.11 Multicasting Reliability Rate adaptation Compatibility Leader 
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Notes

Acknowledgment

This work was supported by the Korea Research Foundation Grant funded by the Korean Government (MOEHRD, Basic Research Promotion Fund) (KRF-2007-331-D00267).

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Copyright information

© Springer Science+Business Media, LLC 2010

Authors and Affiliations

  • Nakjung Choi
    • 1
  • Yongho Seok
    • 1
  • Taekyoung Kwon
    • 1
  • Yanghee Choi
    • 1
  1. 1.School of Computer Science and EngineeringSeoul National UniversitySeoulKorea

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