Performance analysis of broadband access for vehicles based on dedicated optimized IEEE 802.11p protocol

The implementation of Fiber to the Curb (FTTC) scheme in China brings new chances for the development of intelligent transportation system (ITS) as well as the broadband access for vehicle to infrastructure (V2I) wireless communication. However, most V2I communication related research still focuses on specific analysis or optimization in either physics or protocol layer for information exchanges of the traditional data service requirements during recent years, which would not make the best of the bandwidth advantages brought by fiber access to the road side unit (RSU) even if those are important services for vehicles. In this paper, in the 5.9GHz frequency band, a dedicated optimized IEEE 802.11p protocol for physics layer has been proposed based on the basic definition for dedicated short range communication (DSRC) channel and orthogonal frequency division multiplexing (OFDM) multi carrier modulation standard in TD-LTE so as to make terminal users in vehicle enjoy multiple services and get higher data transmission rate in limited bandwidth. By analyzing the working mechanism in theory and simulation, the effectiveness of the proposed protocol has been proved.