Range Optimization for DSRC and 5G Millimeter-Wave Vehicle-to-Vehicle Communication Link

Abstract

The Dedicated Short Range Communications (DSRC) band (5.85-5.925 GHz) allocated for vehicle-to-vehicle (V2V) communication provides limited opportunities for high speed data transfer. Alternatively, high speed communication of at least 1Gbps is possible in the millimeter-wave (mm-wave) bands. To overcome the propagation losses associated with mmwave frequencies, high gain radio architectures are required. In this paper, we present a novel dual-band V2V receiver architecture for both DSRC and 28GHz communications. For each band, we optimized antenna gain and number of elements to maximize range and data rate. For simplicity, free space path loss model was used for link budget estimation. Results show that an antenna array of at least 9×9 element is required to achieve a maximum data rate of 27Mbps at 5.9GHz and a range of 867m. At 28GHz, the same 9×9 dual band array is capable of transmitting high speed signals at a rate of 1Gbps with coverage of 688m.