Delay Analysis and Computing Offloading of URLLC in Mobile Edge Computing Systems

Yifan Duan, Changyang She, Guodong Zhao, Tony Q.S. Quek

研究成果: Conference contribution

5 引文 斯高帕斯(Scopus)

摘要

In the fifth generation (5G) wireless communications, ultra-reliable and low-latency communications (URLLC) service that deliveries short packets will coexist with enhanced mobile broadband (eMBB) service with long packets. In this work, we study how to analyze delay and optimize offloading scheme of short packets in a mobile edge computing (MEC) system with both URLLC and eMBB services. To reduce computing delay for short packets, a processor-sharing (PS) server is deployed in the MEC system, where the total computing ability is equally allocated to all the packets in the server. As such, short packets can bypass long packets in the server. We derive a closed-form expression of the complimentary cumulative distribution function of latency experienced by short packets in the PS server, and minimize the end-To-end (E2E) delay of short packets by optimizing offloading probabilities subject to the reliability requirement. Simulation results validate our analysis and show that the PS server outperforms two kinds of first-come-first-serve servers in the scenarios with both short and long packets.

原文English
主出版物標題2018 10th International Conference on Wireless Communications and Signal Processing, WCSP 2018
發行者Institute of Electrical and Electronics Engineers Inc.
ISBN(電子)9781538661192
DOIs
出版狀態Published - 2018 十一月 30
事件10th International Conference on Wireless Communications and Signal Processing, WCSP 2018 - Hangzhou, China
持續時間: 2018 十月 182018 十月 20

出版系列

名字2018 10th International Conference on Wireless Communications and Signal Processing, WCSP 2018

Conference

Conference10th International Conference on Wireless Communications and Signal Processing, WCSP 2018
國家China
城市Hangzhou
期間18-10-1818-10-20

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications
  • Signal Processing
  • Safety, Risk, Reliability and Quality

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