Achieving Low Latency Two-Way Communication by Downlink and Uplink Decoupled Access

Dong Min Kim, Nuno K. Pratas, Petar Popovski

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

Abstract

In many scenarios, low latency wireless communication assumes two-way connection, such that the node that receives information can swiftly send acknowledgment or other response. In this paper, we address the problem of low latency two-way communication and address it through proposal of a base station (BS) cooperation scheme. The scheme is based on downlink (DL) and uplink (UL) decoupled access (DUDA). To the best of our knowledge, this is the first time that the idea of decoupled access is used to reduce latency. We derive the analytical expression for the average latency and verify that the latency expression is valid with outage probability based on stochastic geometry analysis. Both analytical and simulation results show that, with DUDA, the latency can be reduced by approximately 30-60% compared to the traditional coupled access.

Original languageEnglish
Title of host publication2018 IEEE 19th International Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2018
Number of pages5
PublisherIEEE
Publication date24 Aug 2018
Article number8445940
ISBN (Print)978-1-5386-3513-1
ISBN (Electronic)978-1-5386-3512-4
DOIs
Publication statusPublished - 24 Aug 2018
Event19th IEEE International Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2018 - Kalamata, Greece
Duration: 25 Jun 201828 Jun 2018

Conference

Conference19th IEEE International Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2018
Country/TerritoryGreece
CityKalamata
Period25/06/201828/06/2018
SeriesIEEE International Workshop on Signal Processing Advances in Wireless Communications (SPAWC)
ISSN1948-3252

Keywords

  • Low-latency
  • reliable communications
  • stochastic geometry
  • two-way traffic

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