Wireless channel optimization in VANET by using adaptive modulation

Vehicular ad hoc network (VANET) involves communication of two or more vehicles without the support of network infrastructure. With high speed at which vehicles move the network topology changes rapidly making convergence of network difficult. With the increase in Quality of Service (QoS) needs in evolving applications and the wide spread use of wireless and mobile devices, it is desirable to support QoS in VANETs. However, the characteristics of these networks make the QoS support a complex process. Modulation scheme implemented in any form of wireless network affect the data rate hence the throughput of the communicating nodes, this in turn affect the QoS in the network. We implement adaptive modulation to improve the data throughput and efficiency of channel spectrum in VANET thereafter supporting QoS.