Configuration Management for QoS Adaptation in Multi-Vehicle Cruise Control Systems

Networked embedded software systems incorporate varying degrees of adaptation behavior to sustain their operations with acceptable quality of service (QoS), in the face of hostile external events. For instance, a highly agile cruise control system of a car may dynamically adjust its controller parameters to generate a higher-than-normal increase in torque when encountering a higher road elevation (relative to a normal controller). The paper formulates model-based assessment techniques to reason about how capable is a networked system in meeting its QoS specs in the presence of hostile external events. As a case study, we describe the QoS assessment of a multi-vehicle adaptive cruise control system.

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