Enabling emerging edge applications through a 5G control plane intervention

Mukhtiar Ahmad, Muhammad Ali Nawazish, Muhammad Taimoor Tariq, Muhammad Basit Iqbal Awan, Muhammad Taqi Raza, Zafar Ayyub Qazi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

5G networks are considered potential enablers for many emerging edge applications, such as those related to autonomous vehicles, virtual and augmented reality, and online gaming. However, recent works have shown the cellular control plane is a potential bottleneck in enabling such applications - - control plane operations are slow, frequent, and can directly impact the delay experienced by end-user applications. Moreover, failures in the cellular control plane can significantly degrade application performance. In this paper, we consider the problem of enabling latency-sensitive and safety-critical edge applications on 5G networks. We identify fundamental control plane design challenges and posit enabling these applications requires re-thinking the cellular control plane. We propose a new edge-based cellular control plane, CellClone, which provides fast and fault-tolerant control plane processing. CellClone employs multiple active control plane clones at the network edge to mask control plane faults and speedup control processing. Central to its design is a custom quorum-based consistency protocol that provides state consistency with low latency. Testbed evaluations using real cellular traces show a median improvement of more than 3.8× in speeding up control plane operations with outright node failures and stragglers. These improvements translate into better application performance; with CellClone, autonomous cars and VR applications reduce missed application deadlines by more than 90%.

Original languageEnglish (US)
Title of host publicationCoNEXT 2022 - Proceedings of the 18th International Conference on emerging Networking EXperiments and Technologies
PublisherAssociation for Computing Machinery, Inc
Pages386-400
Number of pages15
ISBN (Electronic)9781450395083
DOIs
StatePublished - Nov 30 2022
Event18th ACM Conference on Emerging Networking Experiment and Technologies, CoNEXT 2022 - Rome, Italy
Duration: Dec 6 2022Dec 9 2022

Publication series

NameCoNEXT 2022 - Proceedings of the 18th International Conference on emerging Networking EXperiments and Technologies

Conference

Conference18th ACM Conference on Emerging Networking Experiment and Technologies, CoNEXT 2022
Country/TerritoryItaly
CityRome
Period12/6/2212/9/22

Keywords

  • cellular core
  • control plane
  • fault tolerance
  • state consistency

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Computer Science Applications
  • Hardware and Architecture

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