Ultrareliable and Low-Latency Wireless Communication: Tail, Risk, and Scale

Mehdi Bennis, Merouane Debbah, H. Vincent Poor

Research output: Contribution to journalArticlepeer-review

626 Scopus citations


Ensuring ultrareliable and low-latency communication (URLLC) for 5G wireless networks and beyond is of capital importance and is currently receiving tremendous attention in academia and industry. At its core, URLLC mandates a departure from expected utility-based network design approaches, in which relying on average quantities (e.g., average throughput, average delay, and average response time) is no longer an option but a necessity. Instead, a principled and scalable framework which takes into account delay, reliability, packet size, network architecture and topology (across access, edge, and core), and decision-making under uncertainty is sorely lacking. The overarching goal of this paper is a first step to filling this void. Towards this vision, after providing definitions of latency and reliability, we closely examine various enablers of URLLC and their inherent tradeoffs. Subsequently, we focus our attention on a wide variety of techniques and methodologies pertaining to the requirements of URLLC, as well as their applications through selected use cases. These results provide crisp insights for the design of low-latency and high-reliability wireless networks.

Original languageEnglish (US)
Article number8472907
Pages (from-to)1834-1853
Number of pages20
JournalProceedings of the IEEE
Issue number10
StatePublished - Oct 2018

All Science Journal Classification (ASJC) codes

  • General Computer Science
  • Electrical and Electronic Engineering


  • 5G and beyond
  • mobile edge computing
  • resource optimization
  • ultrareliable low-latency communication


Dive into the research topics of 'Ultrareliable and Low-Latency Wireless Communication: Tail, Risk, and Scale'. Together they form a unique fingerprint.

Cite this