[Opinion] 2×2:2 MIMO in Smartphones

So, Broadcom announced a 2×2:2 (867Mbps) chip for mobile devices, which of course generated lots of excitement.

Let’s see: 867Mbps Wi-Fi, you say?

  • Can you sustain such speed with your home Internet connection?
  • Have you seen hotspots offering such a high-speed Internet?
  • Do you have a RAID-enabled NAS at home for file transfers, since even the fastest SSDs do not allow for such read rates? [UPD] Well, clearly got carried away and confused MB and Mb here [/UPD]
  • And if the fastest SSD cannot read that fast, what makes one think their tiny phone will be able to write faster onto their embedded flash (or SD card)? The data I have is 35-65Mbps write rates on average.
  • Two antennas means 2x+ power usage of the WLAN module. Can you imagine effect on the battery life?

So, what is the point, then, you say? (more…)