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Security and Connectivity Analysis in Vehicular Communication Networks
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Author(s): Hamada Alshaer (Khalifa University, UAE), Sami Muhaidat (Khalifa University, UAE), Raed Shubair (Khalifa University, UAE)and Moein Shayegannia (Simon Fraser University, Canada)
Copyright: 2014
Pages: 25
Source title:
Security, Privacy, Trust, and Resource Management in Mobile and Wireless Communications
Source Author(s)/Editor(s): Danda B. Rawat (Georgia Southern University, USA), Bhed B. Bista (Iwate Prefectural University, Japan)and Gongjun Yan (University of Southern Indiana, USA)
DOI: 10.4018/978-1-4666-4691-9.ch005
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Abstract
Reliable Vehicular Ad-Hoc Networks (VANETs) require secured uninterrupted uplink and downlink connectivity to guarantee secure ubiquitous vehicular communications. VANET mobility, multi-fading wireless, and radio channels could result in unsecured and disrupted vehicular communications, isolating some vehicle nodes and making them vulnerable to security attacks. A VANET is considered to be connected and secured if there is a secured path connecting any pair of Communication-Enabled Vehicles (CEVs) in this network. Among many parameters, VANET connectivity depends on two main elements: communication transmission range and statistical distribution characterizing inter-vehicle spacing. To guarantee persistent VANET connectivity, a vehicle transmission radio range must be set properly based on the characteristic of the statistical distribution modeling the inter-vehicle spacing. This chapter analyzes three inter-vehicle spacing models based on exponential, Generalized Extreme Value (GEV), and Exponential with Robustness Factor (EwRF) statistical distributions. Based on vehicle nodes spatial density on a road segment, each vehicle node can adjust its transmission range to increase network connectivity and guarantee ubiquitous vehicular communications. Communications among vehicle nodes are secured through trusted Road-Side Units (RSUs) which distribute efficiently secret keys to vehicle nodes under their coverage to establish secure communication sessions.
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