This book presents a tutorial review of van der Pol model, a universal oscillator model for the analysis of modern RC oscillators in weak and strong nonlinear regimes. A detailed analysis of the injection locking in van der Pol oscillators is also presented. The relation between the van der Pol parameters and several circuit implementations in CMOS nanotechnology is given, showing that this theory is very useful in the optimization of oscillator key parameters, such as: frequency, amplitude and phase relationship. The authors discuss three different examples: active coupling RC oscillators, capacitive coupling RC oscillators, and two-integrator oscillator working in the sinusoidal regime. * Provides a detailed tutorial on the van der Pol oscillator model, which can be the basis for the analysis of modern RC oscillators in weak and strong nonlinear regimes; * Demonstrations the relationship between the van der Pol parameters and several circuit implementations in CMOS nanotechnology, showing that this theory is a powerful tool in the optimization of key oscillator parameters; * Provides three circuit prototypes implemented in modern CMOS nanotechnology in the GHz range, with applications in low area, low power, low cost, wireless sensor network (WSN) applications (e.g. IoT, BLE).

This book highlights recent research on bio-inspired computing and its various innovative applications in information and communication technologies. It presents 80 high-quality papers from the 12th International Conference on Innovations in Bio-Inspired Computing and Applications (IBICA 2021) and 11th World Congress on Information and Communication Technologies (WICT 2021), which was held online during December 16-18, 2021. As a premier conference, IBICA-WICT brings together researchers, engineers and practitioners whose work involves bio-inspired computing, computational intelligence and their applications in information security, real-world contexts, etc. Including contributions by authors from 25 countries, the book offers a valuable reference guide for all researchers, students and practitioners in the fields of Computer Science and Engineering.

This book constitutes the proceedings of the Third EAI International Conference on Intelligent Transport Systems, INTSYS 2019, which was held in Braga, Portugal, in December 2019. The 23 revised full papers were selected from 35 submissions and are organized in four thematic sessions on modelling, optimization, tracking and prediction, visualization and sensing.

This book constitutes the proceedings of the Second EAI International Conference on Intelligent Transport Systems, INTSYS 2108, which was held in Guimaraes, Portugal, in November 2018. The 11 revised full papers were selected from 16 submissions and are organized in four thematic sessions on parking and collaborative approaches, case studies and simulation, mobility and planning, and Future 5V.