Cited by 859Wireless Signal Modulation ClassificationAdvanced Wireless Communication TechniquesAdvanced Wireless Communication Technologies

Deep Learning Based Communication Over the Air

Open access
Dorner, Sebastian, Cammerer, Sebastian, Hoydis, Jakob, Brink, Stephan ten·2018·IEEE Journal of Selected Topics in Signal Processing

Abstract

End-to-end learning of communications systems is a fascinating novel concept that has so far only been validated by simulations for block-based transmissions. It allows learning of transmitter and receiver implementations as deep neural networks (NNs) that are optimized for an arbitrary differentiable end-to-end performance metric, e.g., block error rate (BLER). In this paper, we demonstrate that over-the-air transmissions are possible: We build, train, and run a complete communications system solely composed of NNs using unsynchronized off-the-shelf software-defined radios and open-source deep learning software libraries. We extend the existing ideas toward continuous data transmission, which eases their current restriction to short block lengths but also entails the issue of receiver synchronization. We overcome this problem by introducing a frame synchronization module based on another NN. A comparison of the BLER performance of the “learned” system with that of a practical baseline shows competitive performance close to 1 dB, even without extensive hyperparameter tuning. We identify several practical challenges of training such a system over actual channels, in particular, the missing channel gradient, and propose a two-step learning procedure based on the idea of transfer learning that circumvents this issue.

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Crossref · 10.1109/jstsp.2017.2784180

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  1. I. Goodfellow, Y. Bengio, and A. Courville, Deep Learning. MIT Press, 2016.

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Authors
Dorner, S., Cammerer, S., Hoydis, J., & Brink, S. T.
Affiliations
  • University of Stuttgart (DE)
  • Nokia (France) (FR)
Venue
IEEE Journal of Selected Topics in Signal Processing
Published
2018-02
Volume
12
Issue
1
Pages
132-143
ISSN
  • 1932-4553 (ISSN-L)
  • 1941-0484
OpenAlex
W2736068844
Cited by
859
References
35
Citations by year
2026: 44 · 2025: 76 · 2024: 85 · 2023: 93 · 2022: 131 · 2021: 133 · 2020: 139 · 2019: 120 · 2018: 37 · 2017: 1
FWCI
48.45
Type
journal article
Language
en
Open access
Locations
  • IEEE Journal of Selected Topics in Signal Processing (publishedVersion)
  • arXiv (Cornell University) (submittedVersion)
  • arXiv (Cornell University)
Topics
  • Physical Sciences › Computer Science › Artificial Intelligence › Wireless Signal Modulation Classification
  • Physical Sciences › Engineering › Electrical and Electronic Engineering › Advanced Wireless Communication Techniques
  • Physical Sciences › Engineering › Electrical and Electronic Engineering › Advanced Wireless Communication Technologies
Keywords
software-defined radio, frame synchronization, block error rate, transfer learning

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