ARIA-LAA: Alignment reference interval adaptation-based licensed-assisted access for LTE in unlicensed bands

Chan S. Yang, Chung K. Kim, Chung Gu Kang, Jung Min Moon, Seung Hoon Park

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


In the Third Generation Partnership Project (3GPP) standardization for LTE services in the unlicensed band, i.e., aggregation of LTE on licensed and unlicensed spectrum, known as 'Licensed-Assisted Access using LTE' (LAA), carrier sensing via Listen-Before-Talk (LBT) procedure is a vital feature for fair sharing and friendly operation in the unlicensed spectrum. Meanwhile, along with the recent contribution to performance enhancement with the frequency reuse-1 for Licensed-Assisted Access using LTE (LAA) system, we propose a new scheme, referred to as alignment reference interval adaptation-based LAA (ARIA-LAA), by combining the advantages of each conventional scheme into a unified access framework. Our simulation results demonstrate that ARIA-LAA is a novel scheme of spectrum sharing with spatial reuse for LAA that can increase the overall system capacity while satisfying the fair-coexistence requirement. Its implementation is simple and robust as only a single design parameter is dynamically controlled and optimized for adaptation to the varying traffic load.

Original languageEnglish
Title of host publication2017 23rd Asia-Pacific Conference on Communications
Subtitle of host publicationBridging the Metropolitan and the Remote, APCC 2017
PublisherInstitute of Electrical and Electronics Engineers Inc.
Number of pages6
ISBN (Electronic)9781740523905
Publication statusPublished - 2018 Feb 27
Event23rd Asia-Pacific Conference on Communications, APCC 2017 - Perth, Australia
Duration: 2017 Dec 112017 Dec 13


Other23rd Asia-Pacific Conference on Communications, APCC 2017


  • Alignment Reference Interval Adaptation (ARIA)
  • frequency reuse-1
  • License-Assisted Access (LAA)
  • Listen-Before-Talk (LBT) protocol

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Signal Processing

Fingerprint Dive into the research topics of 'ARIA-LAA: Alignment reference interval adaptation-based licensed-assisted access for LTE in unlicensed bands'. Together they form a unique fingerprint.

Cite this