An Efficient Deep Network for Modulation Classification in Impaired MIMO-OFDM Systems

Thien Huynh-The*, Quoc Viet Pham, Toan Van Nguyen, Daniel Benevides Da Costa, Van Phuc Hoang

*Corresponding author for this work

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

1 Scopus citations

Abstract

In this paper, an efficient automatic modulation classification for MIMO-OFDM signals is proposed for next generation wireless networks by exploiting cutting-edge deep learning techniques. Particularly, we design a deep network, namely OFDM modulation classification network (OMCNet), with asymmetric depthwise separable convolution, residual connection, and attention mechanism in a sophisticated design of processing blocks to reduce the overall complexity without sacrificing learning efficiency. Relying on the simulations, our deep network achieves over 92% for different delay spread models demonstrates the robustness of modulation classification under various channel impairments. Remarkably, compared with a baseline model, OMCNet reduces the network size by four times and computation cost by two times with the asymmetric depthwise separable while achieving a competitive accuracy thanks to residual connection and attention mechanism.

Original languageEnglish
Title of host publicationProceedings of the 22nd IEEE Statistical Signal Processing Workshop, SSP 2023
PublisherIEEE Computer Society
Pages130-134
Number of pages5
ISBN (Electronic)9781665452458
DOIs
StatePublished - 2023
Externally publishedYes
Event22nd IEEE Statistical Signal Processing Workshop, SSP 2023 - Hanoi, Viet Nam
Duration: 2 Jul 20235 Jul 2023

Publication series

NameIEEE Workshop on Statistical Signal Processing Proceedings
Volume2023-July

Conference

Conference22nd IEEE Statistical Signal Processing Workshop, SSP 2023
Country/TerritoryViet Nam
CityHanoi
Period2/07/235/07/23

Bibliographical note

Publisher Copyright:
© 2023 IEEE.

Keywords

  • Cognitive radio
  • MIMO-OFDM systems
  • convolutional neural networks
  • deep learning
  • modulation identification

ASJC Scopus subject areas

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

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