|
Wireless Technology Comparison Chart |
| Wireless Standard |
802.11b |
802.11a |
802.11g |
| Popularity |
*** |
Widely adopted. Readily available everywhere |
* |
New Technology |
** |
New Technology with rapid growth expected |
| Speed |
11
mpbs |
up to 11 mpbs (note: cable modem service typically averages no more than 4 to 5 mpbs |
54 mpbs |
up to 54 mpbs (5X greater than 802.11b) |
54 mpbs |
up to 54 mpbs (5X greater than 802.11b) |
| Relative Cost |
$ |
Inexpensive |
$$$ |
Relatively more expensive |
$$ |
Relatively inexpensive |
| Frequency |
2.4
GHz |
More crowded 2.4 GHz band. Some conflict may occur with other 2.4 GHz devices like cordless phones microwave ovens, etc |
5 GHz |
Uncrowded 5 GHz band can coexist with 2.4 GHz networks without interference |
2.4
GHz |
More crowded 2.4 GHz band. Some conflict may occur with other 2.4 GHz devices like cordless phones microwave ovens, etc |
| Range |
100-
150 |
Good range, typically 100-150 feet indoors, depending on construction, building materials, room layout. |
25-75 |
Shorter range than 802.11b and 802.11g. Typically 25 to 75 feet indoors. |
100-
150 |
Good range, typically 100-150 feet indoors, depending on construction, building materials, room layout. |
| Public Access |
Yes |
The number of wireless "hotspots" is growling rapidly, allowing wireless connectivity in many airports, hotels, college campuses, public areas and restaurants. |
X |
None at
this time. |
Yes |
Compatible with current 802.11b hotspots (at 11 mpbs). Also, it is expected that most 802.11 hotspots will quickly convert to 802.11g. |
| Compatibility |
OK 802.11b |
Widest adoption |
OK 802.11a |
Incompatible with 802.11b or 802.11g |
OK 802.11b
802.11g |
Inter operates with 802.11b networks (at 11 mpbs). Incompatible with 802.11a |
