Examining the Performance of MIL-STD-188-110D Waveform 0 Against FBMC-SS Over Skywave HF Channels

Brandon T. Hunt, David B. Haab, Thomas Cameron Sego, Tom V. Holschuh, Hussein Moradi, Behrouz Farhang-Boroujeny

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

This paper provides a comprehensive performance comparison between a current robust military waveform; namely, MIL-STD-188-110D, Waveform 0, and a filter bank multicarrier spread-spectrum (FBMC-SS) waveform proposed for communications through ionospheric/skywave HF channels. Waveform 0 is effectively a direct sequence spread spectrum waveform that uses Walsh multi-codes to enhance the information transmission rate. It may thus be referred to as Walsh-DSSS. FBMC-SS, on the other hand, makes use of filter banks to provide excellent performance when the received signal is subject to partial band interference. Successful application of FBMC-SS for communications across skywave HF channels has been previously demonstrated, both theoretically and through experimental work. However, very little has been done to contrast FBMC-SS against Walsh-DSSS. The goal of this paper is to first add new features to FBMC-SS to bring it on par with Walsh-DSSS. These features include: (i), introduction of multi-codes that achieve a comparable (or better) data rate to Walsh-DSSS; and (ii), addition of a scrambling step applied to the multi-codes to make the receiver detection robust against widely spread multipaths. With this established, in the second part of the paper, we examine the performance of the developed FBMC-SS against Walsh-DSSS when both are applied for communications across skywave HF channels. The two waveforms are compared both through a theoretical study and through experimental works across several skywave channels ranging from hundreds to thousands of kilometers.

Original languageEnglish
Article number11
Pages (from-to)11637-11649
Number of pages13
JournalIEEE Transactions on Vehicular Technology
Volume71
Issue number11
Early online dateJul 25 2022
DOIs
StatePublished - Nov 1 2022

Keywords

  • Diversity methods
  • Spread-spectrum communications
  • interference suppression
  • radio transceivers
  • robustness
  • signal design

INL Publication Number

  • INL/JOU-22-68941
  • 139820

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