Cooperative Spectrum Sensing Application Using RTL-Dongle Technology.

Authors

  • David Alejandro Urquiza Villalonga Universidad Tecnologica de la Habana
  • Eduardo García Cotrina Universidad Tecnologica de la Habana
  • Alejandro A. Vistorte Salgado Universidad Tecnologica de la Habana
  • Jorge Torres Gómez 4UC3M. University, Madrid, Spain
  • David Lee García

Abstract

Cognitive Radio (CR) systems have become a key paradigm for future wireless communications. Spectrum management efficiency is improved by CR strategies, which allows to Secondary Users (SUs) get opportunistic access to idle bands licensed to Primary Users (PUs). Opportunistic access is usually achieved through spectrum sensing (SS) techniques to identify spectrum holes. Detection performance of spectrum holes, given by probability of detection (Pd) and probability of false alarm (Pfa), is improved when cooperative scheme is implemented. Cooperative Spectrum Sensing (CSS) schemes require a Fusion Center (FC) to collect and merge SS results from SUs, then to have enhance performance. In this paper,
we propose a C/C++ application based on Client/Server architecture for Cooperative Spectrum Sensing (CSS). RTL-Dongle device with Software Defined Radio (SDR) capabilities is used to implement SUs
nodes. Local sensing is implemented on each node by using Energy Detector (ED) method provided itslower computational costs. Then, each individual SS results are transmitted to the FC according to centralized
model of data report. FC data fusion is implemented by applying AND and OR parallel fusion rules. Finally, detection report is stored into .txt file for further processing. Application performance
is evaluated by detecting a transmitted reference pilot tone using ICOM-IC7100 equipment. Obtained results confirm the improvement of Pd and Pfa values.

Downloads

Download data is not yet available.

Downloads

Published

2019-12-06

How to Cite

Urquiza Villalonga, D. A., García Cotrina, E., Vistorte Salgado, A. A., Torres Gómez, J., & Lee García, D. (2019). Cooperative Spectrum Sensing Application Using RTL-Dongle Technology. Telemática, 18(2), 139–150. Retrieved from https://revistatelematica.cujae.edu.cu/index.php/tele/article/view/340

Most read articles by the same author(s)

1 2 > >>