A guide to secured and seamless mobility among heterogeneous access networks such as WiMAX, CDMA and GPRS This book shows how an efficient system of optimized mobility management can improve the quality of service in existing forms of mobile communication. It provides a theoretical approach to mobility management, as well as developing the model for systems optimization, including practical case studies using network layer and mobility layer protocols in different deployment scenarios.& This book will provide a common framework for mobility management that considers the theoretical and practical aspects of system optimization. & & & & & & & & & Defines and discusses a common set of optimization methodologies and their application to all mobility protocols independent of IPv4 and IPv6. & & & & & & & & & Applies these technologies in the context of various layers: MAC layer 802.11 basedmobility, WiMax, CDMA, SIP, HIP, VoIP, and many more. & & & & & & & & & Provides a thorough analysis of the required steps during a mobility event such as discovery, network selection, configuration, authentication, security association, encryption, binding update, and media direction