Novel Filter Bank Based Cooperative Spectrum Sensing Under RF Impairments and Channel Fading Beyond 5G Cognitive Radios

Sener Dikmese, Kishor Lamichhane, Markku Renfors

Tutkimustuotos: Conference contributionScientificvertaisarvioitu

1 Sitaatiot (Scopus)
7 Lataukset (Pure)

Abstrakti

Cognitive radio (CR) technology with dynamic spectrum management capabilities is widely advocated for utilizing effectively the unused spectrum resources. The main idea behind CR technology is to trigger secondary communications to utilize the unused spectral resources. However, CR technology heavily relies on spectrum sensing techniques which are applied to estimate the presence of primary user (PU) signals. This paper mostly focuses on novel analysis filter bank (AFB) based cooperative spectrum sensing (CSS) algorithms to detect the spectral holes in the interesting part of the radio spectrum. To counteract the practical wireless channel effects, collaborative subband based approaches of PU signal sensing are studied. CSS has the capability to eliminate the problems of both hidden nodes and fading multipath channels. FFT and AFB based receiver side sensing methods are applied for OFDM waveform and filter bank based multicarrier (FBMC) waveform, respectively. Subband energies are then applied for enhanced energy detection (ED) based CSS methods. Our special focus is on sensing potential spectral gaps close to relatively strong primary users, considering also the effects of spectral regrowth due to power amplifier nonlinearities. The study shows that AFB based CSS with FBMC waveform improves the performance significantly.

AlkuperäiskieliEnglanti
OtsikkoCognitive Radio-Oriented Wireless Networks - 14th EAI International Conference, CrownCom 2019, Proceedings
ToimittajatFaouzi Bader, Pawel Kryszkiewicz, Nikos Dimitriou, Adrian Kliks, Michal Sybis, Dionysia Triantafyllopoulou, Carlos E. Caicedo, Aydin Sezgin
KustantajaSpringer Verlag
Sivut45-58
Sivumäärä14
ISBN (painettu)9783030257477
DOI - pysyväislinkit
TilaJulkaistu - 2019
OKM-julkaisutyyppiA4 Artikkeli konferenssijulkaisussa
TapahtumaEAI International Conference on Cognitive Radio-Oriented Wireless Networks - Poznan, Puola
Kesto: 11 kesäkuuta 201912 kesäkuuta 2019

Julkaisusarja

NimiLecture Notes of the Institute for Computer Sciences, Social-Informatics and Telecommunications Engineering
Vuosikerta291
ISSN (painettu)1867-8211

Conference

ConferenceEAI International Conference on Cognitive Radio-Oriented Wireless Networks
Maa/AluePuola
KaupunkiPoznan
Ajanjakso11/06/1912/06/19

Julkaisufoorumi-taso

  • Jufo-taso 1

!!ASJC Scopus subject areas

  • Computer Networks and Communications

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