Hybrid ARQ in Wireless Packetized Predictive Control

• Published in: IEEE sensors letters Vol. 4; no. 5; pp. 1 - 4
• Main Authors: da Silva, Fernando Effting, Iaremczuk, Ana Lucia Vieira, Souza, Richard Demo, Brante, Glauber, Moritz, Guilherme Luiz, Hussain, Sajjad
• Format: Journal Article
• Language: English
• Published: Piscataway IEEE 01.05.2020; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Automatic control; Automatic repeat request; Communications systems; Control systems; Decoding; Energy consumption; Error probability; Network latency; networkable sensors–actuators; Packet transmission; Power consumption; Predictive control; Redundancy; sensor buses and communications; Sensor networks; sensor system networks; Sensors; Wireless communication; Wireless sensor networks
• ISSN: 2475-1472; 2475-1472
• DOI: 10.1109/LSENS.2020.2986835

Motivated by new wireless applications that rely on ultrareliable low-latency communications while supporting the transmission of short packets, we introduce a method that reduces the wireless resources consumption for real-time control of physical systems. Leveraging the tight interaction between control and communication systems, we make use of packetized predictive control along with incremental redundancy hybrid automatic repeat request, aiming at minimizing the energy consumption of a packet by optimizing the transmit power and prediction length of the controller. Our results show that the proposed strategy can save up to 45% of wireless resources when compared to a state-of-the-art method.