Reliability-Oriented Designs in UAV-assisted NOMA Transmission with Finite Blocklength Codes and Content Caching

Yang Yang, M. Cenk Gursoy

Research output: Chapter in Book/Entry/PoemConference contribution

2 Scopus citations

Abstract

In this paper, we investigate the reliability in an unmanned aerial vehicle (UAV) assisted caching-based downlink network where non-orthogonal multiple access (NOMA) transmission and finite blocklength (FBL) codes are adopted. In this network, the ground user equipments (GUEs) request contents from a distant base station (BS) but there are no direct links from the BS to the GUEs. A UAV with limited cache size is employed to assist the BS to complete the communication by either first requesting the uncached contents from the BS and then serving the GUEs or directly sending the cached contents to the GUEs. In this setting, we first introduce the decoding error rate in the FBL regime as well as the caching policy at the UAV, and subsequently we construct an optimization problem aiming to minimize the maximum end-to-end decoding error rate among all GUEs under both coding length and maximum UAV transmission power constraints. A two-step alternating algorithm is proposed to solve the problem and numerical results demonstrate that our algorithm can solve the optimization problem efficiently. More specifically, loosening the FBL constraint, enlarging the cache size and having a higher transmission power budget at the UAV lead to an improved performance.

Original languageEnglish (US)
Title of host publicationICCCN 2023 - 2023 32nd International Conference on Computer Communications and Networks
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9798350336184
DOIs
StatePublished - 2023
Externally publishedYes
Event32nd International Conference on Computer Communications and Networks, ICCCN 2023 - Honolulu, United States
Duration: Jul 24 2023Jul 27 2023

Publication series

NameProceedings - International Conference on Computer Communications and Networks, ICCCN
Volume2023-July
ISSN (Print)1095-2055

Conference

Conference32nd International Conference on Computer Communications and Networks, ICCCN 2023
Country/TerritoryUnited States
CityHonolulu
Period7/24/237/27/23

Keywords

  • Unmanned aerial vehicle (UAV)
  • content caching
  • finite blocklength (FBL) codes
  • non-orthogonal multiple access (NOMA)

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Hardware and Architecture
  • Software

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