Reliability of an Industrial Wireless Communication System using Approximate Units

In the last decade, approximate computing has gained a lot of research attention as one of the most promising energy-efficient computing paradigms. In the meantime, the wireless communication development driven by the ongoing paradigm shift of Industry 4.0 (I40) and Industrial Internet of Things (IIoT) has been growing enormously. This paper presents a use case study of the impact of approximate adders in industrial wireless communication. The results show the uncorrelation between the traditional metrics used to optimize approximate units and the actual impact at the system level.