HaLow (pronounced halo) is a low-power, long-range version of the IEEE 802.11 Wi-Fi standard. HaLow is based on the Wi-Fi Alliance 802.11ah specification and is expected to play an important part in the Internet of Things (IoT).
HaLow extends Wi-Fi into the 900 MHz band, a part of the electromagnetic radiation spectrum that is well-suited for small data payloads and low-power devices. This lower part of the spectrum is also able to penetrate walls and other physical barriers and has better range than the 2.4GHz and 5 GHz Wi-Fi bands.
The Wi-Fi Alliance, a non-profit industry association whose members include Apple, Microsoft, Cisco, Sony, Dell and LG Electronics, anticipates that HaLow will be used to provide sensors and wearables with native Internet connectivity. The Alliance expects to launch a certification process for Wi-Fi HaLow products in 2018.
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