What is MU-MIMO and why is it important in a router?
The long and steady march of technology has brought newer and more complex acronyms to Wi-Fi routers. The latest is MU-MIMO, which stands for multi-user, multiple-input, multiple-output. Released with the 802.11ac Wave 2 wireless standard back in 2013, it is being employed in many new wireless routers and new devices, and it jumps the hurdles of older technologies to enable faster and more stable wireless connections.
- What is SU-MIMO and MU-MIMO?
- The downside of MU-MIMO
- Do I need MU-MIMO?
- Which devices are compatible with MU-MIMO?
- Which routers use MU-MIMO?
What is SU-MIMO and MU-MIMO?
The majority of routers today employ SU-MIMO technology that, while providing wireless internet to multiple devices, has its limitations. SU-MIMO was introduced with the 802.11n wireless standard in 2009.
SU-MIMO allows you to connect multiple devices to the same wireless router, but the transmission of data can only happen to one device at a time. The router rapidly switches communications between devices — so fast that you normally won't notice — but when you're doing something that requires lag-free internet, you're going to see performance issues. For example, if you're gaming online while someone else is streaming video, you might end up dead before you have a chance to shoot back.
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