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MU-MIMO stands for multi-user, multiple input, multiple output, and is wireless technology supported by routers and endpoint devices. MIMO technology was created to help increase the number of antennas on a wireless router that are used for both receiving and transmitting, improving capacity for wireless connections.
MIMO technology can be used in non-wireless communications systems. One example is the home networking standard ITU-T G.9963, which defines a powerline communications system that uses MIMO techniques to transmit multiple signals over multiple AC wires (phase, neutral and ground).
If you also have premium smartphones, laptops, and consoles in your home, then the benefit of using MU-MIMO increases. We recommend that, if you have eight or more devices that connect to the wireless network in your home, you should consider purchasing a Wi-Fi router with MU-MIMO.
More MIMO, More Speed
Think of it like lanes on a highway. If you have a four line highway, more traffic can flow through at the same time than on a two or one lane highway. Going from 1×1 MIMO to 4×4 MIMO means quadrupling the theoretical maximum data transfer speed.
The ability of Multi-Input Multi-Output (MIMO) antenna systems to increase the capacity of wireless systems has been studied extensively. MIMO can also be used to increase transmission range for a fixed data rate, a fact which is of great practical importance.
Massive MIMO is seen as a key technology to delivering mobile 5G. Massive multiple-input, multiple-output, or massive MIMO, is an extension of MIMO, which essentially groups together antennas at the transmitter and receiver to provide better throughput and better spectrum efficiency.
Devices like laptops with Windows or Mac OS, smartphones, tablets so on, can also include support for MU-MIMO. Most consumer devices offer 1×1 MIMO, 2×2 MIMO or 3×3 MIMO. These numbers refer to the number of antennas and the number of streams they can use to communicate with the WiFi router.
multiple input, multiple output
If you also have premium smartphones, laptops, and consoles in your home, then the benefit of using MU–MIMO increases. We recommend that, if you have eight or more devices that connect to the wireless network in your home, you should consider purchasing a Wi-Fi router with MU–MIMO.
Multi-user MIMO allows multiple Wi-Fi devices to simultaneously receive multiple data streams. For example, a wireless access point (AP) can send data to four different Wi-Fi devices at the same time. MU–MIMO can greatly increase the network’s throughput and is a real asset for high density networks.
The Galaxy S7 support 2×2 MU–MIMO connectivity. The specifications released from the recently announced iPhone 7 did not include MU–MIMO capability. With the wide adoption of MU–MIMO feature taking place, it is highly likely Apple will include MU–MIMO feature in its next version of iPhone in 2017.
A router connects your devices to each other and, in hard-wired setups, to the modem. The router connects to your modem and then to your devices (laptops, smart TVs, printers, etc.) via either an Ethernet cable or WiFi signal. However, a router doesn’t need to connect to a modem to function.
Thus, fast roaming should ALWAYS be enabled when you are using WPA2 Enterprise security. Therefore, to ensure maximum client compatibility, the common recommendation is to disable fast roaming when using WPA2 Personal, and only use it for WPA2 Enterprise networks.
Beamforming is a radio wave technology that is written into the next generation IEEE W
i-Fi 802.11ac standard. This technology allows the beamformer (Router) to transmit radio signal in the direction of the beamformee (Client), thus creating a stronger, faster and more reliable wireless communication.
MIMO (multiple input, multiple output) is an antenna technology for wireless communications in which multiple antennas are used at both the source (transmitter) and the destination (receiver). The antennas at each end of the communications circuit are combined to minimize errors and optimize data speed.
8×8 MIMO, often referred to as 8T8R, uses eight antennas to establish up to eight streams of data with the receiving device. With eight spatial streams established the data payload is divided across all eight antennas and transmitted over the same frequency band.
2×2 MIMO, sometimes referred to as 2T2R, uses two antennas to establish up to two streams of data with the receiving device. Compared to ordinary single antenna networks, 2×2 offers up to a 100% increase in throughput.
The newer technology is nearly 3 times faster per stream! When trying to determine the number of streams that your router or device is capable of, you would look for 1×1 (one antenna supporting one data stream), 2×2 (two antennas supporting two data streams), etc. in the specifications from the device manufacturer.
2×2 MIMO devices with dual antennas and radios will be able to communicate via two streams of transmit and receive. A 3×3 MIMO device with 3 antennas and radios is capable of transmitting and receiving via three streams.
In MIMO, each spatial stream is transmitted from a different radio/antenna chain in the same frequency channel as the transmitter. The receiver receives each stream on each of its identical radio/antenna chains. Since the receiver knows the phase offsets of its own antennas, it can reconstruct the original streams.
A 1×1 router or client adapter supports by one transmit stream and one receive stream. A 2×2 device supports two streams in each direction, and a 3×3 device supports three. And regardless of the number of streams an 802.11n router can support, it can communicate with only one device at a time.
Chris Hoffman @chrisbhoffman. November 7, 2018, 6:40am EDT. MIMO stands for “multiple input, multiple output.” A 4×4 MIMO device has four antennas for four simultaneous data streams, while a 2×2 MIMO has two. The iPhone XR is 2×2 MIMO, while the iPhone XS and XS Max are 4×4 MIMO.
Multiple Input Multiple Output
The 4×4 MIMO-capable iPhones, the 11 Pro Max and XS Max, maxed out twice as fast on AT&T as the non-4×4-capable phones. It’s clear that if you want high LTE speeds in 2019, on AT&T or T-Mobile at least, you need a 4×4 MIMO-capable phone.
The quality of service option is supposed to help prioritize network traffic, but in actuality, it often slows down important connections, misidentifies devices and cripples upload speeds. While it can theoretically do some good on very crowded networks, QoS can also create more problems than it solves.
You should only enable this option when you have the devices on your network with AC wireless standard. It should also be noted that some of the N devices may also support Explicit Beamforming, however, they generally have compatibility issues. Your best bet is to turn it on to see if applies to your hardwares.
Wi-Fi Spatial Streaming Explained. Wi-Fi Spatial streaming or multiplexing (often shortened to SM or SMX) is a transmission technique used in MIMO wireless communication to transmit independent and separately coded data signals, so called streams, from each of the multiple transmit antennas.
- Best Wi-Fi 6 router. TP-Link Archer AX6000. Tyler Lizenby/CNET.
- Best router on a budget. D-Link DIR-867.
- Best mesh router. Nest Wifi.
- Best mesh value. Netgear Orbi (dual-band, AC1200)
- Best mesh performance. Netgear Orbi 6 (tri-band, AX6000)
- Best Wi-Fi 6 mesh router. Asus ZenWiFi AX.
- Best gaming router. Asus RT-AC86U.
Dual–Band Routers: A Smart Middle Ground
In addition to supporting the 2.4 GHz Wireless-N standard, dual–band routers support the 5 GHz frequency band, operating on the newer 802.11ac standard. For instance, many support MU-MIMO technology, which improves the way your Wi-Fi interacts with multiple devices.