One Reply to “WiFi Wisdom – Two”

  1. In reality all 4 answers are correct. When I was first introduced to 802.11ac by some really smart people my initial question was: “So I guess we won’t see this on tablets and smart phones until the batter folks come up with better batteries.” Yeah. That was an AH-HA moment for me. I will explain:

    1) Better airtime utilization means devices are on and off air more efficiently conserving precious battery life even for non-802.11ac devices.
    *TRUE* Despite my first impression, if a radio can say what it needs to say then stop talking, less battery is necessary to send the data. Boom.

    2) 3x to 4x higher throughput than 802.11n means users have better experience for data, voice, video, virtual desktop, etc.
    *TRUE* Max Data Rate 1.3 Gbps with 11ac vs. 450 Mbps with 11n. That’s nearly 3x. Even looking at realized throughput maximums we’re at 290 vs. 950. That’s 3x. When you consider better electronics, radios, and antennas it may get up to 4x performance. Sure, it may be marketing speak, but it’s still TRUE.

    3) More users and more devices per user can be accommodated
    *TRUE* It’s simple. There’s only so much spectrum to go around so if clients are able to get on and off quicker, that means the spectrum will be able to support a higher number of users.

    4) Client devices like smartphones and tablets are adopting 802.11ac faster than 802.11n
    *TRUE* Several analyst groups are saying the ramp-up to 802.11ac, especially on tablets and smart phones, is much higher than 802.11n. One key reason sited: Battery Savings.

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