Energy Efficient Communication using Wake-up Receivers

For many years duty-cycling protocols in its various forms have been the standard way of achieving low energy consumption for communication systems. They do, however, lead to an increased delay and communication complexity and suffer from the inherent clock drift of the communicating nodes. Therefore the achievable energy savings and performance is limited. In recent years a new technology, called wake-up receivers (WuRxs) have been proposed that can solve these problems with an additional ultra low-power radio chip. In my PhD thesis I investigate how this technology can be used in various applications ranging from wildlife monitoring using sensor networks to low-power wireless LAN (WLAN) for Internet of Things (IoT).