Open AccessCognitive Radio using Spectrum Sensing by Cooperative Two Secondary Users
Author(s) -
Omer Mohammed Khodayer Al-Dulaimi,
Călin Vlădeanu,
Alexandru Martia,
Aymen Mohammed Khodayer Al-DulaimiMohammed,
Mohammed Khodayer Hassan Al-Dulaim
Publication year - 2021
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/1094/1/012031
Subject(s) - cognitive radio , exploit , computer science , cognition , scheme (mathematics) , cognitive network , computer network , human–computer interaction , telecommunications , computer security , psychology , wireless , mathematics , mathematical analysis , neuroscience
In cognitive radio systems, users that are cognitive (unlicensed) must constantly scan the spectrum for primary (licensed) users to be present. In this article, the researchers display the benefits of cognitive radio collaboration. It is demonstrate that detection times can be reduced by motivating cognitive users to cooperate in the same band, thus increasing overall agility. Next, a cognitive two-user radio network is depicted and a method to exploit the inherent network asymmetry to improve agility. It is shown that our cooperation program improves the efficiency of cognitive users by 35%. The researchers then extend the cooperation scheme to two user-per-carrier multi-corporate networks and calculate the gain in asymptotic agility.