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D-DEG: A Dynamic Cooperation-Based Approach for Reducing Resource Consumption in Autonomous Vehicles

Operating a vehicle autonomously is a resource-intensive task. Since resources, like computing power, energy, and bandwidth, are limited in such vehicles, methods for reducing resource consumption are required. In this paper, we propose D- DEG , a cooperation-based approach for autonomous vehicles that is capable of reducing resource usage. The basis of our approach is that vehicles that are in close proximity and that use the same sensor and software set perceive and compute similar data. The idea is to share information, e.g., sensor data and application outputs, between vehicles using VANET (Vehicular Ad-Hoc Network) technologies. The transferred information is used to achieve resource preservation, whereby our approach aims to reduce resource consumption by degrading sensors and applications. To this end, we introduce the so-called dynamic-degradation evaluator . This component analyzes the information received by other vehicles to determine whether sensors and/or applications can be degraded. Besides the data received from other vehicles, the dynamic-degradation evaluator also considers the current operational design domain (ODD) and the system state, which includes, for instance, information about the current resource utilization and the safety level of the vehicle, to determine whether degradation operations can be performed. Those degradation operations can range from decreasing the sampling rate of a sensor or the output rate of applications to shutting down sensors or applications, respectively.