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

Ozcelik İ. M., Ersoy C.

IEEE Communications Letters, cilt.25, sa.2, ss.450-454, 2021 (SCI-Expanded) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 25 Sayı: 2
  • Basım Tarihi: 2021
  • Doi Numarası: 10.1109/lcomm.2020.3030887
  • Dergi Adı: IEEE Communications Letters
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, PASCAL, Aerospace Database, Communication Abstracts, Compendex, INSPEC, Metadex, Civil Engineering Abstracts
  • Sayfa Sayıları: ss.450-454
  • Anahtar Kelimeler: CMAF, HTTP adaptive streaming, Live streaming media, low latency, quality of experience
  • İstanbul Gelişim Üniversitesi Adresli: Hayır

Özet

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.