Mobile data traffic is expected to exceed traffic from wired devices in the next couple of years. This emerging future will be empowered by revolutionary 5G radio network technologies with a focus on application-driven connectivity, transparently deployed over various technologies, infrastructures, users and devices to realise the vision of 'the Internet of Everything'. This book presents a roadmap of 5G, from advanced radio technologies to innovative resource management approaches and novel network architectures and system concepts.