Vehicle Platooning: Sliding Window RLNC for Low Latency and High Resilience

Vehicle platooning is one of the challenging communication system due to the mobility of vehicles and wireless channels. Therefore, the channel quality of communication is changing quickly, as a result providing high resilient and low latency vehicle-to-vehicle (V2V) communication is still an open research topic. In order to address the problem, we did a measurement with two transporters driven on a public high way. The distance was between 100-300 m and the speed was in the range of 100-150 km/h. We used IEEE802.11p standard and measured packet reception ratio (PRR) of different data rates. Moreover, we implement systematic sliding window random linear network coding (RLNC) in intermediate nodes in order to transmit packets in platooning for low delay and high resilience. Systematic sliding window RLNC is so far applied only to end-to-end communication. The delay and loss performance of this coding scheme has not been evaluated on multi-hop communication. In this work, we use the measured PRR to mimic the real channel performance as well as apply sliding window coding scheme for a 6 vehicle platooning scenario. Our simulation results show that it is possible to keep the erasure amount below to 15% with 85% probability and overall delay performance below the total transmission times with 75% probability until 4th following vehicle with a constant data rate of 6 MBit/s.