Long-Range Low-Energy Systems for the Internet of Things

点击翻译按钮获取中文摘要

The internet of things refers to the many devices that will be connected to the internet over the next number of years. According to various sources, the number of devices connected to the internet by 2020 is estimated to be from 26 to 50 billion (the number of all devices connected to the internet in 2012 was estimated to be around 8.7 billion). Many of these new devices will be battery powered (or energy harvested) embedded systems where long-range communcations and low-energy are crucial to their success. This is particularly true in cases where the devices needs to be small and light where the battery can dominate the size and weight of the device. In addition, for long-range communications, there will likely be a need for repeaters (devices that relay the wireless information to extend the range) and once again, low-energy operation will be critical.