Chapter 1 is a general introduction. Chapter 2 presents the backbone of WSNs, the IEEE 802.15.4 protocol. The requirements for service-oriented sensor webs are presented in Chapter 3. Cross-layer design principles are described in Chapter 4. Grid co

This book describes the evolution of3Gdigital cellular into an advanced broadband mobile access. The focus of this book is on the evolution of the 3G mobile communication as developed in the 3GPP standardization (Third Generation Partnership Project

The number of mobile subscribers has increased tremendously in recent years. Voice communication has become mobile in a massive way and the mobile is the preferred way for voice communication. At the same time the data usage has grown fast in those