RSS improvement in VANETs by auxilliary transmission at 700 MHz

Communication in Vehicular Ad-hoc Networks (VANETs) is standardized at frequencies around 5.9 GHz in Europe and USA. In this paper we demonstrate by simulation that using a supplementary lower frequency, e.g., around 700 MHz, the Received Signal Strength (RSS) is improved, enabling the communication in areas where obstacles obstruct the communication at 5.9 GHz.