A system and method for selecting the data content of an ionization feedback signal is disclosed. A porous layer may be formed on a surface of a substrate, the porous layer including a plurality of particles and a plurality of voids. The method includes performing fast thermal annealing of the p-GaN layer using either a laser or a flash lamp. The storage system sends each segment in a separate network message. Preferably, an RF subsystem conducts multiple reads of a transponder on a passing vehicle and forwards the read information to the MVIC unit.