Download als PDF FileAs different wireless exams ask for theoretical knowledge about the PHYs, I googled for an overview of all PHYs in a single table. I was not able to find one and therefore created such a table based on the CWNA-108 Study Guide.
|
Physical Layer Name (PHY) |
802.11 |
Band |
Channel Width (MHz) |
Datarates (Mbps) |
Spatial Streams |
|
DSSS (Direct Sequence Spread Spectrum) |
802.11 |
2.4 |
22 |
1, 2 |
1 SS |
|
HR-DSSS (High Rate-DSSS) |
802.11b |
2.4 |
22 |
1, 2, 5.5, 11 |
1 SS |
|
OFDM (Orthogonal Frequency Division Multiplexing) |
802.11a |
5 |
20 |
6, 9, 12, 18, 24, 36, 48, 54 |
1 SS |
|
ERP (Extended Rate PHY) |
802.11g |
2.4 |
20 |
6, 9, 12, 18, 24, 36, 48, 54 |
1 SS |
|
HT (High Throughput) |
802.11n |
2.4 & 5 |
20, 40 |
Up to 600 |
Up to 4 SS |
|
DMG (Directional Multi-Gigabit) |
802.11ad |
60GHz |
Max 2160 MHz |
UP to 6756 |
N/A |
|
VHT (Very High Thorughtput) |
802.11ac |
5 |
20,40,80,160 |
Up to 6933 |
Up to 8 SS |
|
HE (High Efficiency) |
802.11ax |
2.4 & 5 &6 |
20,40,80, optional 160 |
Up to 9602 |
Up to 8 SS |
|
TVHT (TV Whitespace HT) |
802.11af |
50-790MHz |
6-8MHz |
Up to 568.9 |
Up to 4 SS |
|
S1G (Sub-1GHz) |
802.11ah |
Sub 1GHz |
1,2,4,8,16 MHz |
Up to 346 |
Up to 4 SS
|
