Mobile Internet: Advanced Technologies and Services focuses on the migration of the Internet to the wireless world and discusses the relevant technologies and applications. The book discusses the concept of a wireless Internet, its benefits and challenges, and summarizes the relevant enabling technologies. It reviews particular problems which have to be addressed and general issues such as security, authentication, and mobility. The book illustrates the architecture and the key features of a wireless system capable of providing IP multimedia services. Moreover, the book studies the issues related to the TCP performance in wireless environments and demonstrates ways to improve this performance.