Ultra-low latency (ULL) networks: The IEEE TSN and IETF DetNet standards and related 5G Ull research

Ahmed Nasrallah, Akhilesh Thyagaturu, Ziyad Alharbi, Cuixiang Wang, Xing Shao, Martin Reisslein, Hesham El Bakoury

Research output: Contribution to journalArticlepeer-review

398 Scopus citations


Many network applications, e.g., industrial control, demand ultra-low latency (ULL). However, traditional packet networks can only reduce the end-to-end latencies to the order of tens of milliseconds. The IEEE 802.1 time sensitive networking (TSN) standard and related research studies have sought to provide link layer support for ULL networking, while the emerging IETF deterministic networking (DetNet) standards seek to provide the complementary network layer ULL support. This paper provides an up-to-date comprehensive survey of the IEEE TSN and IETF DetNet standards and the related research studies. The survey of these standards and research studies is organized according to the main categories of flow concept, flow synchronization, flow management, flow control, and flow integrity. ULL networking mechanisms play a critical role in the emerging fifth generation (5G) network access chain from wireless devices via access, backhaul, and core networks. We survey the studies that specifically target the support of ULL in 5G networks, with the main categories of fronthaul, backhaul, and network management. Throughout, we identify the pitfalls and limitations of the existing standards and research studies. This survey can thus serve as a basis for the development of standards enhancements and future ULL research studies that address the identified pitfalls and limitations.

Original languageEnglish (US)
Article number8458130
Pages (from-to)88-145
Number of pages58
JournalIEEE Communications Surveys and Tutorials
Issue number1
StatePublished - Jan 1 2019


  • Deterministic networking (DetNet)
  • Preemption
  • Time synchronization
  • Time-sensitive networking (TSN)
  • Ultra-low delay

ASJC Scopus subject areas

  • Electrical and Electronic Engineering


Dive into the research topics of 'Ultra-low latency (ULL) networks: The IEEE TSN and IETF DetNet standards and related 5G Ull research'. Together they form a unique fingerprint.

Cite this