TUTCRIS - Tampereen teknillinen yliopisto

TUTCRIS

Multicarrier Waveform Processing for HF Communications

Tutkimustuotosvertaisarvioitu

Yksityiskohdat

AlkuperäiskieliEnglanti
Otsikko2018 International Conference on Military Communications and Information Systems, ICMCIS 2018
KustantajaIEEE
Sivumäärä8
ISBN (elektroninen)978-1-5386-4558-1
DOI - pysyväislinkit
TilaJulkaistu - 2018
OKM-julkaisutyyppiA4 Artikkeli konferenssijulkaisussa
TapahtumaInternational Conference on Military Communications and Information Systems - Hotel Bellotto, Warsaw, Puola
Kesto: 22 toukokuuta 201823 toukokuuta 2018
https://wil.waw.pl/icmcis2018_eu/

Conference

ConferenceInternational Conference on Military Communications and Information Systems
LyhennettäICMCIS
MaaPuola
KaupunkiWarsaw
Ajanjakso22/05/1823/05/18
www-osoite

Tiivistelmä

High-frequency (HF) band communications can be flexibly realized using multicarrier modulation (MCM) techniques. HF channels are typically characterized by severe multi-path effects and high Doppler spreads requiring advanced estimation and equalization methods as well as elaborate waveform design for addressing these issues. This paper compares the performance of three widely utilized MCM techniques, namely, cyclic prefix (CP) orthogonal frequency-division multiplexing (OFDM), filter bank multicarrier/offset-QAM (FBMC/OQAM), and filtered multitone (FMT) in HF communications. In addition, the filtered variant of CP-OFDM is included in the comparison. The performance of these systems is simulated using commonly adopted HF-channel models. Channel estimation is carried out using scattered pilots with minimum mean-squared error based interpolation schemes whereas the equalization is realized using frequency-sampling based subcarrier equalizer. It is shown that the simulated uncoded bit-error rate of CP-OFDM is superior when compared with FBMC/OQAM and FMT even in the case when CP-OFDM waveform is filtered for better spectral containment. In addition, the implementation complexity and peak-to-average power ratio performance of (filtered) CP-OFDM compare favourable with FBMC/OQAM and FMT.