Tomato and... 802.16m aka "WiMax 2" ?

Discussion in 'Tomato Firmware' started by mpegmaster, Jan 31, 2010.

  1. mpegmaster

    mpegmaster Addicted to LI Member

    :thumbup: 802.16m, aka "WiMax 2," is expected to be approved by the Institute of Electrical and Electronics Engineers Inc. (IEEE) sometime this summer. The specification is said to enable 120Mbit/s downlink and 60Mbit/s uplink in an urban scenario using 4x2 MIMO (Multiple-Input/Multiple-Output) antennas on a 20MHz-wide channel. This is roughly double what current WiMax technology can achieve in lab conditions, of course -- actual data-rates to the device tend to be cut when used in real world circumstances.

    So what do we know about this WiMAX sequel? Well for one, it will be backward compatible with 802.16e, the WiMAX standard currently used by operators in the United States.

    "Think of it like you're building a 20-lane highway," this is how 802.16m can use multiple channels to deliver data. "While it would be complicated to build out 20 lanes on the same highway, you could instead use two 10-lane highways or four five-lane highways. So this is how you can get higher data rates by using a combination of multiple channels."

    Some pieces of cool WiMAX gear...

    A commonly-held misconception is that WiMAX 2 will deliver 70 Mbit/s over 50 kilometers (30 miles). In reality, WiMAX 2 can either operate at higher bitrates or over longer distances but not both: operating at the maximum range of 50 km increases bit error rate and thus results in a much lower bitrate. Conversely, reducing the range (to under 1 km) allows a device to operate at higher bitrates.

    IEEE is expected to approve the 802.16m mobile WiMAX standard, also known as WiMAX 2, this summer. Under laboratory conditions, WiMAX 2 can deliver a blazing 120Mbit/s down and 60Mbit/s up when using 4×2 MIMO antennas on a 20MHz-wide channel.

    And the "RF bytes" just keep on penetrating....:eek:nfire:

    I/We all hope that 'Tomato' will there too!!!

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