An efficient multicast scheme for live streaming services in SC-PTM

Tsern Huei Lee, Wei Chieh Liu, Alex C.C. Hsu

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations


Live streaming applications over wireless mobile networks have increased dramatically in recent years. In most current systems, the media center is capable of providing multiple streams of different qualities and each individual viewer selects its own stream based on channel condition and/or other considerations. This may result in inefficient use of radio resource. In this paper, we propose to let evolved node B, which has the channel conditions of all viewers, decide which streams should be delivered so that the total throughput is maximized, subject to the constraints that every viewer can successfully decode at least one stream and the radio resource consumed is under a pre-determined threshold. For a system that has many possible modulation and coding schemes, it requires huge computational complexity to obtain the optimum solution. We present a greedy algorithm which tends to find a solution that allows more viewers to decode higher quality streams. Simulation results show that the total throughputs achieved by the greedy algorithm for various scenarios are close to those of the optimum solutions.

Original languageEnglish
Title of host publication2019 IEEE 90th Vehicular Technology Conference, VTC 2019 Fall - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781728112206
StatePublished - Sep 2019
Event90th IEEE Vehicular Technology Conference, VTC 2019 Fall - Honolulu, United States
Duration: 22 Sep 201925 Sep 2019

Publication series

NameIEEE Vehicular Technology Conference
ISSN (Print)1550-2252


Conference90th IEEE Vehicular Technology Conference, VTC 2019 Fall
Country/TerritoryUnited States


  • Greedy
  • Live streaming
  • Precedence
  • SC-PTM


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