%K LMI relaxation, polynomial optimization, model predictive control %T Approximation of model predictive control laws for polynomial systems %P 1425-1436 %X A fast implementation of a given predictive controller for polynomial systems is introduced by approximating the optimal control law with a piecewise constant function defined over a hyper-cube partition of the system state space. Such a state-space partition is computed in order to guarantee stability, an a priori fixed trajectory error as well as input and state constraints fulfilment. The presented approximation procedure is achieved by solving a set of nonconvex polynomial optimization problems, whose approximate solutions are computed by means of semidefinite relaxation techniques for semialgebraic problems. %I Wiley-Blackwell %D 2014 %R 10.1002/asjc.863 %J Asian Journal of Control %N 5 %L eprints2475 %A Massimo Canale %A Vito Cerone %A Dario Piga %A Diego Regruto %V 16