The technologies associated with wireless communications (wireless) have evolved significantly in recent years. The constant width needs, mobility and stability are becoming more and in that sense, you need the best technologies associated … especially because the frequency range is “tight” and is increasingly saturated, given the number of devices communicating in frequencies of 2.4 Ghz and 5 Ghz.
One of the latest technologies adopted in wireless routers is the MU-MIMO! You know what it is?
Three times faster the previous standard N and greater energy efficiency and robust security, 802.11ac is the perfect way to accelerate a multimedia home network and solve the congestion caused by various network-connected devices. But this is if we are talking about the standard 802.11ac Wave 1. And if we talk in 802.11ac Wave 2, which supports speeds up to 3.6 Gbps?
For those not on top of wireless technologies certainly MU-MIMO It means very little. However, this new technology promises to revolutionize the world of wireless communications
What the hell is the MU MIMO?
Before we talk about the MU-MIMO is necessary to understand how it works now a wireless router. Wireless routers, probably what we have at home, are devices that well fulfill their function to send and receive data … but only in one direction! In other words, routers that do not support MIMO technology just can “communicate” with a given device in a given time. That is, if my PC is receiving content via streaming (which pass through the router), the router does not have the ability to spread other streaming to other equipment! (eg. In the PC the user is watching a series on Netflix while the smartphone user is viewing videos on Youtube).
Stop! After explaining everything now seems more confused, because I have several devices connected to the wireless network and no “complains” … you can see it all! Yes, it is true, however, the “trick” used for older routers is the speed of distribution of such information to each device. Although at times the transmission “empancar” everything is transparent to the end user.
In short, older routers can only “pay attention” to a single machine in a given time period. But with the MU-MIMO everything changes!
MU-MIMO (multiuser, multiple input, multiple output) is a standard that is based on the SU-MIMO (Single MIMO) and SDMA (Space Division Multiple Access). With MU-MIMO router can maintain simultaneously up to 4 connections with equipment which significantly improves the performance of the entire network.
SU-MIMO vs MU-MIMO
As we can see in the following image, using the SU-MIMO streams of communication are maintained with only one device at any time. However, with the MU-MIMO router can communicate simultaneously over a given period of time with more than one device. It is like a competitive communication!
What routers support the MU-MIMO technology?
At present, there are still many home routers that support this technology. The Pplware already made known some of which stand out the Asus RT-AC87U and the TP-LINK Archer C2600.
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