The rapid growth in mobile communications has led to an increasing demand for wideband high data rate communications services. In recent years, the Distributed Antenna System (DAS) has emerged as a promising candidate beyond 3G and 4G mobile communications. Distributed Antenna Systems: Open Architecture for Future Wireless Communications is a comprehensive technical guide that covers the fundamental concepts, recent advances and open issues of the DAS. The topic is explored with various key challenges in diverse scenarios, including architecture, capacity, connectivity, scalability, medium access control, scheduling, dynamic channel assignment and cross-layer optimization. The primary focus of this book is the introduction of concepts, effective protocols, system integration, performance analysis techniques, simulations and experiments, and more importantly, future research directions in the DAS. The first part of the book introduces DAS fundamentals, including channel models and theoretical issues, examining the capacity of the DAS with different structures. Concentrating on the MAC and protocols for the DAS, the second part of the book includes information on distributed signal processing, optimal resource allocation, cooperative MAC protocols, cross layer design, and distributed organization. The third part presents case studies and applications of the DAS, including experiment, RF engineering, and applications.

The rapid growth in mobile communications has led to an increasing demand for wideband high data rate communications services. In recent years, the Distributed Antenna System (DAS) has emerged as a promising candidate beyond 3G and 4G mobile communications. Distributed Antenna Systems: Open Architecture for Future Wireless Communications is a comprehensive technical guide that covers the fundamental concepts, recent advances and open issues of the DAS. The topic is explored with various key challenges in diverse scenarios, including architecture, capacity, connectivity, scalability, medium access control, scheduling, dynamic channel assignment and cross-layer optimization. The primary focus of this book is the introduction of concepts, effective protocols, system integration, performance analysis techniques, simulations and experiments, and more importantly, future research directions in the DAS. The first part of the book introduces DAS fundamentals, including channel models and theoretical issues, examining the capacity of the DAS with different structures. Concentrating on the MAC and protocols for the DAS, the second part of the book includes information on distributed signal processing, optimal resource allocation, cooperative MAC protocols, cross layer design, and distributed organization. The third part presents case studies and applications of the DAS, including experiment, RF engineering, and applications.

Qigong (CHEE-GUNG) has swept America as the newest approach to healing and was on the rise in China until the recent Falun gong crackdowns. This 2,500-year-old form of traditional Chinese medicine claims that the human body has channels (meridians) through which flows a substance known as Qi. While internal Qigong is essentially a relaxation and meditation technique, external Qigong is an alleged form of energy radiation emitted from the fingertips of 'masters.' Practitioners of this form of Qigong claim that they can heal serious diseases such as hypertension, glaucoma, asthma, ulcers, and even cancer.This remarkable book, written by a group of Chinese scientists, discusses the nature and practice of Qigong and its various manifestations. They give special attention to the many pseudoscientific claims made for external Qigong and uncover a good deal of deception practised by charlatans in the name of medicine. Exposed are such alleged Qigong practices as: clairvoyance, telepathy, weightlessness, energy discharge, energy-impregnated language (Qigong prescriptions), and much more.