Performance Indicators of Vehicular Communication

Various WLAN parameters have specific significance with regard to their application domain. Parameters that affect WLAN performance in the indoor environments may be different from those that are important in vehicular communication. Performance of WLAN in a particular application mainly depends on the proper evaluation of the associated parameters. The parameters such as the beacon frame interval, Short Inter Frame Space (SIFS), DCF Inter Frame Space (DIFS), Contention Window size, for example, are specific to the general purpose use of WLANs. While these parameters are also important for R2V communications, there are two PHY layer parameters that are important in any kind of wireless communications, namely signal strength and data rate. It is obvious that R2V communications shall be rendered ineffective without the availability of strong signal strength and high data rates.