Superfast Wi-Fi is now possible with the new IEEE 802.11ac

The new IEEE 802.11ac standard for Wi-Fi has won over the performance, scalability, and speed compared to the previous standard 802.11n.

Yes, its all because of certain betterment in the technical aspects of standard. 802.11ac that gives a lightning fast speed to the Wi-Fi users because the channel bonding has been increased upto 160 MHz along with denser 256 Quadrature Amplitude Modulation and eight spatial streams.

Talking about the new design, 802.11ac is supposed to operate at 5GHz-band.Now, this helps it to easily avoid interferences at 2.4 GHz and hence providing the users strong incentives for the users to upgrade their hotspot Ap’s to dual band capability.

Apart from the speed even 802.11ac delivers grater robustness. Let’s try to understand this with the figure below given by CISCO.Untitled                                                                

                                                                               Simulation of Rate at Range for 802.11ac                                     

In the figure it has been assumed that, to deliver 450 Mbps, 802.11ac uses three spatial streams at 64 QAM constellation with short guard level and little or negligible coding gain.

In the figure above one can observe that, 80-MHz links offer higher data rates close in and farther out. In Wave 1, different product configurations offer different benefits, but all are a marked step up from 802.11n. Meanwhile Wave 2, and particularly 160 MHz, potentially offers still greater speeds. However, this improvement is not immediately useful, especially in the enterprise, due to the very limited number of 160-MHz channels that are available.

After having all these benefits and betterment in 802.11ac, the final question in everyone’s mind is, when am I going to get this technology in my day to day life???

Well, the answer to your question is that 802.11ac is still not rolled out for public usage, so for now we should be happy with 802.11n.

There are certain problems that is restricting the new 802.11ac to get into our day to day life. Let’s talk about few of them. The first and foremost problems is that we don’t have 802.11ac AP’s.

Moreover, as I mentioned earlier that it is a 5GHz technology, so the dual band clients or AP are forced to use dual band at 2.4GHz.

But it is projected that this new faster technology will be made common to all by next, let’s keep our fingers crossed and wait for the next generation Wi-Fi to arrive at our doorsteps.

Abhishek Abhinav (5 Posts)

The author is a gadget lover and works with Accenture as Network Engineer.