Multi-Cell Performance of Grant-Free and Non-Orthogonal Multiple Access

Ameha T. Abebe, Joonsung Lee, Minjoog Rim, Chung Gu Kang

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

Abstract

The compressive sensing-based random access may get impacted largely by other cell interference (OCI), which may shatter the sparsity of the received signal model unless the signature space assignment among interfering cells is carefully handled. In this paper, we investigate the performance of multi-sequence spreading-based random access (MSRA) scheme under multi-cell environment. In particular, a grant-free random access scenario is considered to indicate its particular attributes that fundamentally affect the cellular performance. We also give the performance of MSRA in comparison with sparse code multiple access (SCMA). We show that if a proper signature assignment is undertaken, the OCI in MSRA and other CS-based schemes can be modeled as a dispersed noise which does not critically undermine the underlying sparsity.

Original languageEnglish
Title of host publication2017 IEEE 85th Vehicular Technology Conference, VTC Spring 2017 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Volume2017-June
ISBN (Electronic)9781509059324
DOIs
Publication statusPublished - 2017 Nov 14
Event85th IEEE Vehicular Technology Conference, VTC Spring 2017 - Sydney, Australia
Duration: 2017 Jun 42017 Jun 7

Other

Other85th IEEE Vehicular Technology Conference, VTC Spring 2017
CountryAustralia
CitySydney
Period17/6/417/6/7

Keywords

  • Machine-Type Communication (MTC)
  • Multi-Sequence Spreading Random Accees (MSRA)
  • Multiuser Detection (MUD)
  • Other-Cell Interference (OCI)

ASJC Scopus subject areas

  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Applied Mathematics

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  • Cite this

    Abebe, A. T., Lee, J., Rim, M., & Kang, C. G. (2017). Multi-Cell Performance of Grant-Free and Non-Orthogonal Multiple Access. In 2017 IEEE 85th Vehicular Technology Conference, VTC Spring 2017 - Proceedings (Vol. 2017-June). [8108685] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/VTCSpring.2017.8108685