Short Bytes: IEEE 802.11ah is supposed to solve the problem of signal strength across concrete walls and windows. It solves this problem by operating at a lower frequency than the existing ones. Thus, the devices also need to consume less power in transmitting and receiving signals.
802.11 ah is another IEEE standard wireless networking protocol which operates in the sub-one GHz (900MHz) band. The main intention of this newer wireless networking protocol is to provide support to Internet of Everything (IoE) and also provide an extended range of Wi-Fi.
How 802.11 ah solves wall and other obstruction problem?
Today’s Wi-Fi standards like 802.11 a/ b/ g/ etc operate at high frequencies like 2.4GHz and/or 5GHz. Since their frequencies are so high, it becomes harder for them to maintain the signal strength as they pass through the walls.
Currently, 900MHz is an unlicensed spectrum. At a frequency like 900MHz, which is much lower to the above-mentioned frequencies, things like concrete walls, wooden windows, doors etc. would not pose a problem to the wifi access.
According to WiFi Alliance, 802.11ah is supposed to cover double the range of the current standards that is because the signal quality does not downgrade as the signal propagates. Also, devices would not have to burn out their battery in sending and receiving signals.