Editing Wireless sensor network (section)

===Wireless===
There are several wireless standards and solutions for sensor node connectivity. [[Thread (network protocol)|Thread]] and [[Zigbee]] can connect sensors operating at 2.4&nbsp;GHz with a data rate of 250&nbsp;kbit/s. Many use a lower frequency to increase radio range (typically 1&nbsp;km), for example [[Z-wave]] operates at 915&nbsp;MHz and in the EU 868&nbsp;MHz has been widely used but these have a lower data rate (typically 50&nbsp;kbit/s). The IEEE 802.15.4 working group provides a standard for low power device connectivity and commonly sensors and smart meters use one of these standards for connectivity. With the emergence of [[Internet of Things]], many other proposals have been made to provide sensor connectivity. [[LoRa]]<ref>{{cite web|url=https://www.lora-alliance.org/technology|title=LoRa Alliance|url-status=live|archive-url=https://web.archive.org/web/20171109080940/https://www.lora-alliance.org/technology|archive-date=2017-11-09}}</ref> is a form of [[LPWAN]] which provides long range low power wireless connectivity for devices, which has been used in smart meters and other long range sensor applications. Wi-SUN<ref>{{cite web|url=https://www.wi-sun.org/|title=Wi-Sun Alliance|url-status=live|archive-url=https://web.archive.org/web/20171109134725/https://www.wi-sun.org/|archive-date=2017-11-09|date=2018-08-15}}</ref> connects devices at home. [[NarrowBand IOT]]<ref>{{cite web|url=https://www.link-labs.com/blog/nb-iot-vs-lora-vs-sigfox|title=NB-IOT vs. LoRa vs. Sigfox, LINKLabs, Jan 2017.|url-status=live|archive-url=https://web.archive.org/web/20171110171333/https://www.link-labs.com/blog/nb-iot-vs-lora-vs-sigfox|archive-date=2017-11-10}}</ref> and LTE-M<ref>{{cite web|url=https://www.link-labs.com/blog/what-is-lte-m|title=What is LTE-M?|url-status=live|archive-url=https://web.archive.org/web/20171109081312/https://www.link-labs.com/blog/what-is-lte-m|archive-date=2017-11-09}}</ref> can connect up to millions of sensors and devices using cellular technology.