Adaptive Beacon Transmission for Reducing Inter-Reception Time in Vehicle Platooning

In vehicle platooning applications, vehicles keep track of the real-time states of other vehicles through beacons for the platoon’s stability and safety. However, under harsh wireless channel conditions, high packet loss incurs delays in updating other vehicles’ states and it makes vehicles not be able to react to dynamic situations in time. In this paper, we propose an adaptive beacon transmission scheme (A-BTS), which monitors packet loss events and controls the beacon transmission timing for reducing increased inter-reception time (IRT) of beacons caused by packet losses. Evaluation results demonstrate that A-BTS can reduce maximum IRT by 10.4% compared with the fixed beacon interval scheme.