Semi-granted sparse code multiple access (SCMA) for 5G networks (invited paper)

Mao Yang, Bo Li, Zhicheng Bai, Xiaoya Zuo, Zhongjiang Yan, Yusheng Liang

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Sparse Code Multiple Access (SCMA) is a promising non-orthogonal multiple access technology for 5G radio access networks. It improves the connectivity and capacity. However, the two multiple access methods of SCMA: granted and grant-free cannot dynamically match the real-time demands since the resources allocated for the granted method and grant-free method are clearly separated with each other. This further deteriorates the system performance. This article proposes a semi-granted SCMA method, by enabling the granted demands and grant-free demands to share the same resources. Simulation results confirm that semi-granted SCMA matches the dynamically fluent demands and significantly improve the throughput of SCMA 5G system.

Original languageEnglish
Title of host publicationIoT as a Service - Third International Conference, IoTaaS 2017, Proceedings
EditorsYi-Bing Lin, Ilsun You, Der-Jiunn Deng, Chun-Cheng Lin
PublisherSpringer Verlag
Pages381-388
Number of pages8
ISBN (Print)9783030004095
DOIs
StatePublished - 2018
Event3rd International Conference on IoT as a Service, IoTaaS 2017 - Taichun, Taiwan, Province of China
Duration: 20 Sep 201722 Sep 2017

Publication series

NameLecture Notes of the Institute for Computer Sciences, Social-Informatics and Telecommunications Engineering, LNICST
Volume246
ISSN (Print)1867-8211

Conference

Conference3rd International Conference on IoT as a Service, IoTaaS 2017
Country/TerritoryTaiwan, Province of China
CityTaichun
Period20/09/1722/09/17

Keywords

  • 5G
  • Grant-free
  • Multiple access
  • Non-orthogonal multiple access
  • SCMA
  • Sparse code multiple access

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