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In recent years, the wireless communication technology rapidly develops and the mobile devices are in widespread used. The IETF Mobile IP working group has proposed the Mobile IP to support IP mobility, and it keeps a session connected when a mobile node roams from subnet to subnet. Novel network type is the mobile ad hoc network (MANET) which is formed by a set of mobile devices with limited power and using multi-hop communication capabilities without through any infrastructure. In order to move to an all-IP environment, we use Mobile IP to provide global Internet connectivity for ad hoc...

Due to the wireless techniques develop rapidly and universality of mobile devices, so people use mobile devices to access Internet, anytime-anywhere. Recently, vehicular network is broadly to apply to the Intelligent Transportation System (ITS) and it gains significant attention in the field of industry and academic. Moreover, there are many standards and protocols provided for vehicular networks. In this book, the main contributions are to provide fast handoff schemes in mobile networks and secure mutual authentication mechanisms in vehicular networks. Moreover, we integrate the...

In recent year, the 3GPP LTE/LTE-A wireless access technology is a hot research topic. More recently, the femtocell network have received significant attention that many specifications and standards are discussed vehemently. Femtocells are short-range coverage, low cost and low power cellular base stations, designed for the use in a home or small business environment. The purposes of femtocell are to enhance communication quality when the user is located in the weak signal area, share wireless system loadings, and promote spectrum utilization. Although the femtocell network owns several...