As wireless networks become an integral component of the modern communication infrastructure, energy efficiency will be an important design consideration due to the limited battery life of mobile and portable terminals. Such devices must operate with the highest possible energy efficiency while still maintaining a minimum quality of service to meet the users expectations. PCSAR, a new power-saving MAC protocol for centralized control wireless networks is presented in this book. The book contains power saving techniques employed by standards for WPAN and WLANs, such as Bluetooth, Zigbee,...