This chapter addresses the research issues related to the design and implementation of
cognitive radio vehicular ad hoc networks (CRVs). It provides a survey of existing solutions …

The idea of letting vehicles communicate with each other has given rise to a vast number of
novel applications that provide value added services to travellers, such as information …

Abstract Vehicular Ad hoc Networks (VANET) becomes more popular in industry, academia
and government. However, Typical VANET is challenged by high speed mobility and …

With long delays due to sporadic routing links in cognitive vehicular communications
systems, relay node selection is one of the key design factors, as it significantly improves …

A dedicated single short range communication link is not efficient for an inter-vehicular
communication system and results into degraded performance. To address the problem, a …

Fast delivery and high reliability are two of the main requirements which must be guaranteed
by multi-hop broadcast protocols of alert messages in VANETs. Most of the existing schemes …

In cognitive radio (CR), spectrum sensing is a key enabling functionality to discover the
vacant spectrum which is not occupied by primary systems. With good sensing capability …

The spectrum scarcity of VANETs (Vehicular Ad hoc Networks) can be alleviated by
spectrum sharing technology. We present a framework of CCR-VANETs (Cellular-based …

Abstract Cognitive Radio Vehicular Ad-hoc Networks (CR-VANETs) exploit cognitive radios
to allow vehicles to access the unused channels in their radio environment. Thus, CR …

Vehicular networks have been widely considered as a promising architecture to enable
vehicles-to-vehicle (V2V) and vehicle-toinfrastructure (V2I) connections, and the wireless …