@ AC3200 Routers By July? - SmallNetBuilder
Quote:
....if you're expecting AC3200 routers to include MU-MIMO, 10GbE and provide 2.6 Gbps maximum link rates in 5 GHz, you'll be disappointed. Think of them more like what they actually are, two 5 GHz and one 2.4 GHz radio stuffed in a box with a dual-core CPU. SemiAccurate's Charlie Demerjian wrote a fairly critical analysis of XStream back in April that's worth a read. ....So if AC3200 doesn't provide any real benefit, why the rush to it? Most likely it's due to problems being encountered by designers trying to wrestle 4x4 "Wave 2" chipsets into products. Multi-User MIMO (MIMO) is the big draw in Wave 2, but implementation is likely proving more difficult than expected. MU-MIMO depends on an even more complex form of beamforming that is even more compute intensive and hellaciously difficult than 802.11ac's standard beamforming. MU-MIMO is more time-dependent than single-user MIMO and problems like inter-user interference caused by clients too close together are just part of the problems to be solved. .... |
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