The Doppler Quarterly Fall 2016 - Page 42

You can’t wait for the final standards to emerge. You need to build IoT systems now. mainly the ones that continue to develop them. One key thing to understand is that the IoT requires a ton of technology to make it work, from wireless communications to data security to communications between devices. A single standard is unlikely to cover everything, just as a single standard cannot cover the way your laptop works. Low Energy). it is expected to add a longer range and support for mesh networking capability, where each IoT device acts as a communication node that relays communication from itself and other nodes back to a central control system. IoT Communication Standards: Take Your Pick Z-Wave, another IoT communications standard, is more of a de facto standard than a traditional one approved by a standards body or industry consortium. it is a low-power mesh networking technology licensed by Sigma Designs. Zwave operates at 908.42 MHz in the US (868.42 MHz in Europe), and enables a single mesh network to support up to 232 nodes. Network communications is core to the IoT. it is about how these devices talk to each other, as well as to centralized servers. And the standards to which you should pay close attention deal with communications at the most primitive levels. IEEE 802.11ah Wi-Fi will remain at the heart of most home networks. But the IoT needs lower-power communications technology for devices that use batteries. Enter IEEE 802.11ah, a version of Wi-Fi with lower power consumption that is due for approval as a standard in 2016. According to the IEEE, however, this standard is still evolving. The Wi-Fi Alliance has introduced the term “Wi-Fi HaLow” as the designation for products incorporating IEEE 802.11ah technology. This standard operates in frequency bands below 1 GHz, which translates into longer-range, lower-power connectivity to Wi-Fi-certified products. Bluetooth Smart Bluetooth is another popular communications protocol for IoT devices. The version of Bluetooth for the IoT is a low-power version called Bluetooth Smart (or 40 | THE DOPPLER | FALL 2016 Z-Wave ZigBee ZigBee, developed by the ZigBee industry alliance, is another mesh network based on the IEEE 802.15.4 standard that is designed to be used in low-power home devices. The technology defined in the ZigBee spec was purpose-built for the IoT, driving communications with less expensive devices. 6LoWPAN This strangely named standard is an IPv6-only version of IEEE 802.15.4 mesh networking. It grew out of “the Internet Protocol [that] could and should be applied even to the smallest devices.” This means that low-power dev 6W2vFƖ֗FVB&6W76r6&ƗFW26VBv&BvVvFB77FV2ࠥTPFRTRVG&rVW&wƖ6R&V6VFǒG&GV6VBTRrvW"fW'6bFRFvFV6VB6&FW72FVV6V6F2DT5B6&FW72FVWRWGv&FV6wv62FP