The OFDM Research Platform Based On Gnuradio

In recent years traffic safety issues continued to rise because of the urban traffic congestion. VANET has become a hot topic in academia and industry. WAVE standard is a vehicular wireless communication standard abbreviation, and the application of this technology can provide a variety of applications. These services require the information of the car itself and the external environment on the basis of analyzing the information and interactive network platform. The vehicle through wireless communication technologies such as information exchange with other vehicles, roadside unit, and provide a rich multimedia and mobile Internet services in-car entertainment.WAVE has released an IEEE 802.11P standards based OFDM communication technologies. Research has shown that the filter bank technology is a mature technology in digital signal processing applications. It not only has all the advantages of OFDM, but also has a higher spectral resolution. This makes the system has greater resistance band interference, but also to ensure efficient communication between subchannels. In order to study the filter bank technology in the field of WAVE, this paper implements a validation platform to validate the performance of the new method of communication.This paper focuses on IEEE 802.11p standard. It studied the physical layer and the upper part of the agreement, focuses on the realization of IEEE 802.11p OFDM physical layer technology, and ultimately accomplishes transmitter based on OFDM and filter banks. This paper implementes IEEE1609.3 and IEEE1609.4 simulation procedures, built a simulation platform. Specific work carried out as follows:The author researched the car networking architecture,802.11P agreement, as well as OFDM and NOFB communications technology comparison.The author accomplished 802.11P transmitter, and also the IEEE1609.3 and IEEE1609.4 simulation program, and tested them.The study researched filter group for vehicle wireless communication system’by the simulation platform and discussed the compatibility plan of filter group and standards 802.11P based communication system.