[submodule "static/stands/kiwi_tcms"]
path = static/stands/kiwi_tcms
url = https://github.com/kiwitcms/fosdem-2021-stand-static.git
-
+[submodule "content/stands/libreoffice"]
+ path = content/stands/libreoffice
+ url = https://git.libreoffice.org/conferences/fosdem-2021-content.git
+[submodule "static/stands/libreoffice"]
+ path = static/stands/libreoffice
+ url = https://git.libreoffice.org/conferences/fosdem-2021-static.git
[submodule "content/stands/pharo"]
path = content/stands/pharo
url = https://github.com/pharo-divulgation/pharo-fosdem-content.git
[submodule "static/stands/opentap"]
path = static/stands/opentap
url = https://github.com/kaushiksanthanam/opentap-fosdem21-static.git
+[submodule "static/stands/openuk"]
+ path = static/stands/openuk
+ url = https://github.com/OpenUK/fosdem-stand.git
---
-description: "openwifi: opensource WiFi chip!\r\n\r\nFeatures:\r\n802.11a/g/n\r\n\
- 20MHz bandwidth; 70 MHz to 6 GHz frequency range\r\nMode tested: Ad-hoc; Station;\
- \ AP, Monitor\r\nDCF (CSMA/CA) low MAC layer in FPGA (10us SIFS is achieved)\r\n\
- Configurable channel access priority parameters:\r\n duration of RTS/CTS, CTS-to-self\r\
- \n SIFS/DIFS/xIFS/slot-time/CW/etc\r\nTime slicing based on MAC address\r\nEasy\
- \ to change bandwidth and frequency:\r\n 2MHz for 802.11ah in sub-GHz\r\n \
- \ 10MHz for 802.11p/vehicle in 5.9GHz\r\nCSI (Channel State Information, freq offset,\
- \ equalizer to computer)\r\nIQ capture (real-time AGC, RSSI, IQ sample to computer)\r\
- \nOn roadmap: 802.11ax"
+description: |
+ <p>openwifi: opensource WiFi chip!</p>
+ <ul>
+ <li>802.11a/g/n</li>
+ <li>20MHz bandwidth; 70 MHz to 6 GHz frequency range</li>
+ <li>Mode tested: Ad-hoc; Station; AP, Monitor</li>
+ <li>DCF (CSMA/CA) low MAC layer in FPGA (10us SIFS is achieved)</li>
+ <li>802.11 packet injection</li>
+ <li>CSI (Channel State Information, freq offset, equalizer to computer)</li>
+ <li>IQ capture (real-time AGC, RSSI, IQ sample to computer)</li>
+ <li>Configurable channel access priority parameters: duration of RTS/CTS, CTS-to-self, SIFS/DIFS/xIFS/slot-time/CW/etc</li>
+ <li>Time slicing based on MAC address (time gated/scheduled FPGA queues)</li>
+ <li>Easy to change bandwidth and frequency: 2MHz for 802.11ah (sub-GHz); 10MHz for 802.11p/vehicle (5.9GHz)</li>
+ <li>On roadmap: 802.11ax</li>
+ </ul>
layout: stand
logo: stands/openwifi/logo.png
-new_this_year: "1. Port the design from a single type of board to 6 types of boards!\
- \ From high end (expensive) to low end (cheap for entry)\r\n2. Low latency ping:\
- \ 200~300us round trip.\r\n3. Important improvement on stability and performance.\r\
- \n4. Increase the packet queue from 2 to 4 in FPGA, meet the Linux mac80211 requirement/assumption\
- \ better.\r\n5. Channel estimation and bug fix on the OFDM receiver. Better reception\
- \ performance.\r\n6. CSI (Channel State Information) interface to Linux. And it\
- \ doesn't affect normal WiFi communication.\r\n7. IQ sample interface to Linux.\
- \ And it doesn't affect normal WiFi communication.\r\n8. Low cost SDR openwifi dongle\
- \ (<100usd) and chip tape out plan are under preparation. Stay tuned!"
+new_this_year: |
+ <p>We have updates across our projects since FOSDEM'20:</p>
+ <ul>
+ <li>802.11n (WiFi4)!</li>
+ <li>Port the design from a single type of FPGA dev board to 6 types of boards! From high end (as expensive as 3600USD) to low end (900USD).</li>
+ <li>Low latency ping RTT (Round Trip Time): 200~300us.</li>
+ <li>Essential improvement on stability, 802.11 compatibility and performance cross FPGA and Linux driver.</li>
+ <li>Increase the FPGA packet queue from 2 to 4, meet the Linux mac80211 requirement/assumption about QoS/Priority-strategy better.</li>
+ <li>Channel estimation and frequency offset compensation bug fix on the OFDM receiver. Better reception performance.</li>
+ <li>CSI (Channel State Information) interface from FPGA to Linux. And it doesn't affect normal WiFi communication.</li>
+ <li>IQ sample interface from FPGA to Linux. And it doesn't affect normal WiFi communication.</li>
+ <li>Open the idea to Low cost SDR openwifi dongle (+/-200USD) and real chip tape out!</li>
+ </ul>
showcase: "All of those opensource hardware projects are focusing on the CPU side:\r\
\nRISC-V, all kinds of open CPU cores, Raspberry PI, xxxx PI, PINE64, openWRT, AI/machine-learning\
\ accelerators.\r\nHowever the radio connectivity part of those opensource hardware\
\ boards are still from black-box silicon (commercial chips, like WiFi chips from\
- \ big companies).\r\nOpenwifi project, which was announced in the last FOSDEM, is\
+ \ big companies).\r\nOpenwifi project, which was announced in the FOSDEM'20, is\
\ the first attempt to build an opensource chip in the radio connectivity domain!\r\
\nNow we have tested the design on the FPGA development board (SDR -- Software Defined\
\ Radio), and it works well in the real world scenario. Meanwhile we also add some\
\ unique features that commercial chips don't have.\r\n\r\nWe hope more people can\
\ come and think about the opensource activity in the radio chip domain, and invest\
- \ more in this domain!\r\n\r\nWe are also eager to hear from people about the idea\
- \ (under internal preparation): Low cost SDR openwifi dongle (<100usd) and chip\
- \ tape out plan."
+ \ more in this domain!\r\n\r\nWe are also eager to seek people's voice and help about\
+ \ the idea of: Low cost SDR openwifi dongle (+/-200usd) and chip\
+ \ tape out!"
themes:
- Hardware
title: openwifi
projects / stands-website.git / commitdiff