/802.11 /FreeBSD /Linux /WiFi101 |
Contents
Learn about the wireless
WiFi Basics: http://www.cs.miami.edu/home/burt/learning/Csc524.052/notes/wifi.html
Introduction to Wi-Fi (802.11 or WiFi): http://ccm.net/contents/802-introduction-to-wi-fi-802-11-or-wifi
Comparison of open-source wireless drivers: https://en.wikipedia.org/wiki/Comparison_of_open-source_wireless_drivers
intro(4)
ifnet(9)
wlan(4)
ieee80211(9)
Kong, Joseph. (2012). FreeBSD Device Drivers: A Guide for the Intrepid. No Starch Press.: https://www.nostarch.com/bsddrivers.htm
- Chapter 16: Network Drivers, Part 1: Data Structures
- Chapter 17: Network Drivers, Part 2: Packet Reception and Transmission
Theory
Interoperability: https://en.wikipedia.org/wiki/Interoperability
WLAN Channels: https://en.wikipedia.org/wiki/List_of_WLAN_channels
Technical terms
Frame aggregation: https://en.wikipedia.org/wiki/Frame_aggregation
- TX and RX paths:
A little bit out-dated (HAL was deprecated around 2011) but main concepts still hold: https://madwifi.wordpress.com/2009/04/16/tx-rx-path/
- AP, ADHOC, STA modes:
What is the difference between Access Point mode and Ad-Hoc mode? http://support.connectify.me/article/8-what-is-the-difference-between-access-point-mode-and-ad-hoc-mode
- Wi-Fi Aggregation
AMSDU vs AMPDU: A Brief Tutorial on WiFi Aggregation Support: https://arxiv.org/ftp/arxiv/papers/1704/1704.07015.pdf
802.11n
802.11n Demystified. Key considerations for n-abling the Wireless Enterprise: http://www.winncom.com/images/stories/Motorola_802.11nDEM_WP_v4_0209.pdf
What is an antenna chain and how do I figure out the correct setting for my router? (A post about 802.11n features): https://superuser.com/q/744065/442991
Nomadic Communications. 802.11n/ac: MIMO and Space Diversity: http://disi.unitn.it/locigno/didattica/NC/15-16/04_802.11n-ac_MIMO.pdf
Getting started with kernel projects
FreeBSD Architecture Handbook. Chapter 9. Writing FreeBSD Device Drivers: https://www.freebsd.org/doc/en/books/arch-handbook/driverbasics.html
Getting started with kernel projects: Graphics/Getting started with kernel projects
How to write a Device Driver in FreeBSD: https://www.bsdcan.org/2006/papers/freebsd.device.driver.slides.pdf
Intel WiFi drivers
iwn(4)
iwm(4)
Glossary
- AMPDU
Aggregated-MAC Packet Data Unit
- BBS
Basic Service Set
- CRC
Cyclic Redundancy Check
- CTS
Clear To Send
- FC
Frame Control
- GI
Guard Interval
- HT
High Throughput
- Introduced in 802.11n.
- ICV
Integrity Check Value
- IE
Information Element
https://en.wikipedia.org/wiki/IEEE_802.11#Information_Elements
- IV
Initialization Vector
- LLT
Low Latency Transport
- MCS
Modulation and Coding Scheme
- MPDU
MAC Protocol Data Unit
- MSDU
MAC Service Data Unit
- NIC
Network Interface Controller
- OFDM
Orthogonal Frequency Division Multiplex
http://www.radio-electronics.com/info/rf-technology-design/ofdm/ofdm-basics-tutorial.php
- P2P GO
Peer-to-Peer Group Owner
Wi-Fi Direct, Section 3.1 Architecture: https://hsc.com/Portals/0/Uploads/Articles/WFD_Technology_Whitepaper_v_1.7635035318321315728.pdf
- QoS
Quality of Service
- RS
Rate Scaling
- RTS
Request To Send
- STA
Station Computer
- TKIP
Temporal Key Integrity Protocol
https://en.wikipedia.org/wiki/Temporal_Key_Integrity_Protocol
- TSF
Timing Synchronization Function
https://en.wikipedia.org/wiki/Timing_Synchronization_Function
- VHT
Very High Throughput
- Introduced in 802.11ac.
http://www.electronicdesign.com/communications/understanding-ieee-80211ac-vht-wireless
- XMIT
Transmit
indicates that I've not read it yet (and most often just scanned through)