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

نویسندگان

  • Nakjung Choi
  • Yongho Seok
  • Taekyoung Kwon
  • Yanghee Choi
چکیده

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.

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عنوان ژورنال:
  • Wireless Networks

دوره 17  شماره 

صفحات  -

تاریخ انتشار 2011