5 ms·

This relies on OpenOFDM for much of the "Physical" layer of WiFi, which has some INCREDIBLE documentation that is really worth checking out if you want to under

This relies on OpenOFDM for much of the "Physical" layer of WiFi, which has some INCREDIBLE documentation that is really worth checking out if you want to understand how modern radios go from a radio signal to packets: https://openofdm.readthedocs.io/en/latest/ https://openofdm.readthedocs.io/en/latest/ (Modern) WiFi shares a lot of similarities to the physical layers of LTE/5G NR in their more basic modes, so this is useful well beyond WiFi.

non-entity 6y ago
Wow. I once wondered about building a wifi card with an SDR but quickly got discouraged when figuring out how much IEEE charges for the specifications.
- pantalaimon 6y ago
  All the specifications are on Sci-Hub.
- stagger87 6y ago
  Don't buy the spec unless you have a business reason to. 802.11 specs are available to most members of IEEE. Whether it be your personal membership or through your school, work, a friend. A membership is like 200 a year.
- monadic2 6y ago
  What is the point of the IEEE if the results are not public domain? Seems like burning cash to no common benefit.
- sohkamyung 6y ago
  Most of the IEEE 802 specs (including the base IEEE802.11 WiFi spec) are free [1]. But you do need to at least register to get access to them. >New IEEE 802® standards are included in the program after they have been published in PDF for six months. All standards available in the IEEE GET 802™ program will remain in the program until they are replaced by a superseding document or are withdrawn. Drafts are not part of the program. > >To download these standards, you must sign in with an IEEE Account. If you do not already have an IEEE Account [1] https://ieeexplore.ieee.org/browse/standards/get-program/page/series?id=68 https://ieeexplore.ieee.org/browse/standards/get-program/pag...
  - non-entity 6y ago
    I read about this program on several sites including the Linux wireless project page and the osdev wiki and the links seemed broken everywhere. Not sure why I didn't find this before.
    - sohkamyung 6y ago
      I believe the Get IEEE project has shifted its web location over the years, which probably explains those broken links. I did a search for "Get IEEE" which gave me the updated one.
- xxpor 6y ago
  And once you do get it downloaded, the latest 802.11 spec is over 3000 pages long :D

non-entity 6y ago

Wow. I once wondered about building a wifi card with an SDR but quickly got discouraged when figuring out how much IEEE charges for the specifications.

pantalaimon 6y ago
All the specifications are on Sci-Hub.
stagger87 6y ago
Don't buy the spec unless you have a business reason to. 802.11 specs are available to most members of IEEE. Whether it be your personal membership or through your school, work, a friend. A membership is like 200 a year.
monadic2 6y ago
What is the point of the IEEE if the results are not public domain? Seems like burning cash to no common benefit.
sohkamyung 6y ago
Most of the IEEE 802 specs (including the base IEEE802.11 WiFi spec) are free [1]. But you do need to at least register to get access to them. >New IEEE 802® standards are included in the program after they have been published in PDF for six months. All standards available in the IEEE GET 802™ program will remain in the program until they are replaced by a superseding document or are withdrawn. Drafts are not part of the program. > >To download these standards, you must sign in with an IEEE Account. If you do not already have an IEEE Account [1] https://ieeexplore.ieee.org/browse/standards/get-program/page/series?id=68 https://ieeexplore.ieee.org/browse/standards/get-program/pag...
- non-entity 6y ago
  I read about this program on several sites including the Linux wireless project page and the osdev wiki and the links seemed broken everywhere. Not sure why I didn't find this before.
  - sohkamyung 6y ago
    I believe the Get IEEE project has shifted its web location over the years, which probably explains those broken links. I did a search for "Get IEEE" which gave me the updated one.
xxpor 6y ago
And once you do get it downloaded, the latest 802.11 spec is over 3000 pages long :D