Internet delays and packet losses sensor/actuator for UDP based networked control systems

The performance of networked control systems (NCS) in non-deterministic networks, such as the Internet depends largely on the network delays and packet losses. The reproduction of these delays and packet losses in a NCS implies the use of network simulators and emulators. In this paper, a system that performs as a sensor and as an actuator of Internet delays and packet losses is presented. It collects these parameters from the Internet and reproduces them into a local network data flow. The paper presents some comparative results and makes a performance analysis of the whole system.