This book constitutes the refereed proceedings of the EUC 2007 workshops held in conjunction with the IFIP International Conference on Embedded and Ubiquitous Computing, EUC 2007, in Taipei, Taiwan, in December 2007.

The 69 revised full papers presented together with 4 invited papers were carefully reviewed and selected from about 200 submissions to the seven workshops. Topics covered by the workshops are trustworthiness, reliability and services in ubiquitous and sensor networks (TRUST 2007), system and software for wireless system-on-chip (WSOC 2007), network centric ubiquitous systems (NCUS 2007), ubiquitous underwater acoustic-sensor network (UUWSN 2007), RFID and ubiquitous sensor networks (USN 2007), embedded software optimization (ESO 2007), and security in ubiquitous computing (SecUbiq 2007).

This text explains the general principles of how wireless systems work, how mobility is supported, what the underlying infrastructure is and what interactions are needed among different functional components. Designed as a textbook appropriate for undergraduate or graduate courses in Computer Science (CS), Computer Engineering (CE), and Electrical Engineering (EE), Introduction to Wireless and Mobile Systems third edition focuses on qualitative descriptions and the realistic explanations of relationships between wireless systems and performance parameters. Rather than offering a thorough history behind the development of wireless technologies or an exhaustive list of work being carried out, the authors help CS, CE, and EE students learn this exciting technology through relevant examples such as understanding how a cell phone starts working as soon as they get out of an airplane.