1. Laboratory of Nonlinear Systems — Circuits and Complexity (LANSCOM), Department of Physics, Aristotle University of Thessaloniki, Thessaloniki GR-54124, Greece
2. Department of Electrical and Electronics Engineering, Faculty of Technology, Sakarya University, 54187 Serdivan, Sakarya, Turkey
3. School of Electronics and Telecommunications, Hanoi University of Science and Technology, 01 Dai Co Viet Road, Hanoi, Vietnam
4. Institute for Complex System and Mathematical Biology, University of Aberdeen, Aberdeen AB24 3UE, UK