Low-Latency Live Streaming over HTTP in Bandwidth-Limited Networks

Ozcelik İ. M., Ersoy C.

IEEE Communications Letters, vol.25, no.2, pp.450-454, 2021 (SCI-Expanded) identifier

  • Publication Type: Article / Article
  • Volume: 25 Issue: 2
  • Publication Date: 2021
  • Doi Number: 10.1109/lcomm.2020.3030887
  • Journal Name: IEEE Communications Letters
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, PASCAL, Aerospace Database, Communication Abstracts, Compendex, INSPEC, Metadex, Civil Engineering Abstracts
  • Page Numbers: pp.450-454
  • Keywords: CMAF, HTTP adaptive streaming, Live streaming media, low latency, quality of experience
  • Istanbul Gelisim University Affiliated: No


HTTP adaptive streaming (HAS) can achieve low latency for live streaming with the Common Media Application Format. However, the legacy mechanisms inaccurately measure the available bandwidth because the download time is affected by not only the network but also idle times between chunks at the live encoder side. These wrong measurements may condemn users to a low quality-of-experience (QoE). This letter presents a HAS client with a novel bandwidth measurement heuristic. Our experiments show that it provides a better QoE with fewer video freezes and higher video quality while achieving a live latency down to one second in bandwidth-limited networks.