The use of wireless communications in real-time control applications poses several severe problems related to the comparatively low reliability of the communication channels. This paper is concerned with application-level strategies for ameliorating the effects of packet losses and burst errors in sampled-data control systems implemented via one or more wireless links. In particular, the paper develops an adaptive/predictive compensator that reconstructs the best estimates (in a least squares sense) of a sequence of one or more missing process data packets. An embedded implementation of the proposed technique is applied to a case study, and it is shown that the proposed techniques outperform existing methods in a control system experiencing artificially induced burst errors, whilst also exhibiting acceptably low overheads.
|Title of host publication||Proceedings of 2012 IEEE 17th International Conference on Emerging Technologies and Factory Automation, ETFA 2012|
|Publication status||Published - 1 Dec 2012|
|Event||IEEE 17th Conference on Emerging Technologies & Factory Automation - Krakow, Poland|
Duration: 17 Sep 2012 → 21 Sep 2012
|Conference||IEEE 17th Conference on Emerging Technologies & Factory Automation|
|Abbreviated title||ETFA 2012|
|Period||17/09/12 → 21/09/12|