Classification and analysis of spectrum sensing mechanisms in Cognitive Vehicular Networks

Riyahi, A. and Bah, S. and Sebgui, M. and Elgraini, B. (2018) Classification and analysis of spectrum sensing mechanisms in Cognitive Vehicular Networks. EAI Endorsed Transactions on Smart Cities, 2 (7): e4. ISSN 2518-3893

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Vehicular Ad hoc Networks (VANETs) is an essential part of Intelligent Transportation System (ITS), which aims to improve the road safety. However, the main challenge in VANET is the spectrum scarcity which is more severe especially in the urban environment. In this view using Cognitive Radio (CR) technology in VANET has emerged as a promising solution providing additional resources and allowing spectrum efficiency. But, vehicular networks are highly challenging for spectrum sensing due to speed and dynamic topology. Furthermore, these parameters depend on the CVNs’ environment such as highway, urban or suburban. Therefore, solutions targeting CVNs should take into consideration these characteristics. As a first step towards an appropriate spectrum sensing solution for CVNs, we first, provide a comprehensive classification of existing spectrum sensing techniques for CVNs. Second, we discuss, for each class, the impact of the vehicular environment effects such as traffic density, speed and fading on the spectrum sensing and data fusion techniques. Thirdly, we derive a set of requirements for CVN’s spectrum sensing that takes into consideration specific characteristics of CVN environments. Finally, we propose a new CVN scheme adopted in particular for urban environment where the spectrum sensing is more challenging due to dense traffic and correlated shadowing.

Item Type: Article
Uncontrolled Keywords: Cognitive radio, CVNs, Spectrum sensing, Data fusion, Dense traffic, Correlation
Subjects: Q Science > QA Mathematics > QA75 Electronic computers. Computer science
QA75 Electronic computers. Computer science
Depositing User: EAI Editor II.
Date Deposited: 09 Sep 2020 11:40
Last Modified: 09 Sep 2020 11:40

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