TY - JOUR
T1 - Ultra-low latency (ULL) networks
T2 - The IEEE TSN and IETF DetNet standards and related 5G Ull research
AU - Nasrallah, Ahmed
AU - Thyagaturu, Akhilesh
AU - Alharbi, Ziyad
AU - Wang, Cuixiang
AU - Shao, Xing
AU - Reisslein, Martin
AU - El Bakoury, Hesham
PY - 2019/1/1
Y1 - 2019/1/1
N2 - 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.
AB - 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.
KW - Deterministic networking (DetNet)
KW - Preemption
KW - Time synchronization
KW - Time-sensitive networking (TSN)
KW - Ultra-low delay
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U2 - 10.1109/COMST.2018.2869350
DO - 10.1109/COMST.2018.2869350
M3 - Article
AN - SCOPUS:85053108899
VL - 21
SP - 88
EP - 145
JO - IEEE Communications Surveys and Tutorials
JF - IEEE Communications Surveys and Tutorials
SN - 1553-877X
IS - 1
M1 - 8458130
ER -