| | 1 | [[TracNav(802.11/TOC)]] |
| | 2 | = 802.11 Reference Design: MAC = |
| | 3 | |
| | 4 | The MAC implementation is based on the DCF (distributed coordination function) protocol specified in section 9.3 of the 802.11-2012 standard. This design does not implement the PCF (point coordination function) in section 9.4 of the standard. |
| | 5 | |
| | 6 | |
| | 7 | '''Frames:''' The MAC specification defines many frame formats in section 8 of the 802.11-2012 standard. Our implementation supports a sub-set of these frames. |
| | 8 | |
| | 9 | '''Data/ACK:''' Data and ACK frames are of course supported. |
| | 10 | |
| | 11 | '''Management Frames:''' The following management frames are supported: |
| | 12 | * Beacon |
| | 13 | * Probe Request |
| | 14 | * Probe Response |
| | 15 | * Authentication |
| | 16 | * Deauthentication |
| | 17 | * Association Request |
| | 18 | * Association Response |
| | 19 | * Reassociation Request |
| | 20 | * Reassociation Response |
| | 21 | * Disassociation |
| | 22 | |
| | 23 | '''Handshakes:''' The standard defines many inter-node handshakes for many combinations of ad-hoc and infrastructure networks. Our current MAC implementation supports the common association handshake required for a STA (node) to join the network of an AP. This handshake consists of: |
| | 24 | |
| | 25 | ||= STA =||= Direction =||= AP =|| |
| | 26 | || Probe Request || → || ↓ || |
| | 27 | || ↓ || ← || Probe Response || |
| | 28 | || Authentication || → || ↓ || |
| | 29 | || ↓ || ← || Authentication || |
| | 30 | || Association Request || → || ↓ || |
| | 31 | || • || ← || Association Response || |
| | 32 | |
| | 33 | '''RTS/CTS:''' Support for the RTS/CTS handshake is not currently implemented (it will be soon) |
