Direct-Conversion Spectrum Sensor Impaired by Symmetric α-Stable and α-Sub-Gaussian Noises

Authors

DOI:

https://doi.org/10.14209/jcis.2023.5

Keywords:

Spectrum Sensing, underwater communications, snapping shrimp, Direct-Conversion Receiver, Impulsive Noise, SαS, αSG

Abstract

Spectrum sensing in underwater cognitive acoustic networks or in underwater acoustic sensor networks can be impaired by impulsive noise generated by snapping shrimps. In mathematical analysis or simulations, the amplitude variations of this noise are commonly modeled by the symmetric alpha-stable (SαS) distribution. As an alternative, the alpha-sub-Gaussian (SαG) distribution can model both temporal correlation and amplitude variations. This article assesses the performance of underwater spectrum sensing with a direct-conversion receiver (DCR) under impulsive noise modeled by the SαS and SαG distributions. Several recent test statistics are compared, demonstrating that they have different degrees of robustness against impulsive noise and that the DCR is significantly less sensitive to this noise, compared to the conventional receiver model that does not take into account the influences of hardware characteristics into the performance of spectrum sensing.

Downloads

Download data is not yet available.

Author Biographies

Luiz Gustavo Barros Guedes, Instituto Nacional de Telecomunicações - Inatel

Luiz Gustavo Barros Guedes received the BSc
(2019) degree in Telecommunications Engineering
from the National Institute of Telecommunications
(Inatel), Brazil. He is working towards the MSc de-
gree and works as a DWDM Networks Specialist at
Inatel. His research interests are digital transmission,
signal processing, mobile communications, dynamic
spectrum access, probability and statistics.

Dayan Adionel Guimarães, National Institute of Telecommunications

Electrical Engineering.

Full Professor.

Downloads

Published

2023-02-07

How to Cite

Guedes, L. G. B., & Guimarães, D. A. (2023). Direct-Conversion Spectrum Sensor Impaired by Symmetric α-Stable and α-Sub-Gaussian Noises. Journal of Communication and Information Systems, 38(1), 34–46. https://doi.org/10.14209/jcis.2023.5

Issue

Vol. 38 No. 1 (2023)

Section

Regular Papers

License

Copyright (c) 2023 Luiz Gustavo Barros Guedes, Dayan Adionel Guimarães (Author)

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

Authors who publish in this journal agree to the following terms:

  1. Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a CC BY-NC 4.0 (Attribution-NonCommercial 4.0 International) that allows others to share the work with an acknowledgment of the work's authorship and initial publication in this journal.
  2. Authors can enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgment of its initial publication in this journal.
  3. Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) before and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).

___________

Received 2022-11-21
Accepted 2023-01-10
Published 2023-02-07

Most read articles by the same author(s)

1 2 > >>