ABSTRACT

ABSTRACT In this chapter, the impact of radio-planning strategies, transceiver electronic design, and overall wireless system planning will be discussed. By following a complete approach, from physical layer limitations derived from radiopropagation losses to transceiver requirements and the functional elements of the overall wireless system, performance of such wireless systems applied in e-health environments is increased. The

CONTENTS

Introduction ................................................................................................................................. 226 Characterization of Radio Wave Propagation ....................................................................227

Wireless Systems Design for Health Monitoring ...................................................................233 System Architecture ...............................................................................................................234 Analog Front-End ...................................................................................................................235 Analog-to-Digital Conversion .............................................................................................. 237 Low-Power Receivers ............................................................................................................238 Low-IF Receiver ...................................................................................................................... 239 Zero-IF Receiver ..................................................................................................................... 240

Examples of Wireless Systems Applied to AAL ..................................................................... 241 HOLTIN Service ..................................................................................................................... 242