With contributions from experts, this book explores the latest WBAN systems, technologies, and applications. It covers the basic techniques for designing and building WBAN systems. It explains the deployment issues and then moves into the application areas. The remaining chapters focus on the development of hardware, signal processing algorithms, and wireless communication and network design for wearable and implantable body sensors used in WBAN applications. The book discusses antenna design, propagation in and around the body, channel modeling, coexistence and power management issues, which are other critical design components for successful hospital deployment.