Experimental Evaluation of Routing Protocols for Vehicular Ad-hoc Networks Using GNU Radio and USRP

Vehicular Ad-hoc Networks (VANET) is attracting notice as one of Intelligent Transportation Systems (ITS) technology. It is important to evaluate various communication protocols for VANET in a field operational test. Because channel environment of VANET is highly variable on time and location. Most of field operational tests of VANET are conducted on single hop topology and measuring channel characteristics. In this paper, we evaluate the routing protocols for VANET in multi-hop topology by using Software Defined Radio (SDR) technology. Ad-hoc On-demand Distance Vector[1] (AODV) and Direction Oriented Routing Protocol[2] (DORP) are chosen to be implemented. AODV has been already implemented and we conducted measurement experiments. The result of experiments validated that AODV was implemented correctly and usable for field operational tests. Experiments of DORP will be completed in the near future.