|
Network Speeds
|
nominal
speed |
TCP/IP |
|
| cellphone |
to 38.4 kbps |
10 kbps |
"handy" in Europe |
| V.34 |
56 kbps |
30 kbps |
modem |
| Bluetooth |
to 1 Mbps |
|
~30 feet |
| Ricochet |
128 kbps |
40 kbps |
900 MHz |
| ISDN |
64 kbps/ch |
50 kbps/ch |
ISDN |
| UMTS/GSM |
2 Mbps |
144 kbps |
"3G" |
| cable, DSL |
~1.5 Mbps |
500 kbps |
"broadband" |
| T1 |
1.5 Mbps |
|
24 channels |
| E1 |
2 Mbps |
|
"Euro T1" 32 channels |
| D2B |
5.6 Mbps |
|
car fiber, 1992+ |
| 5.9 GHz DSRC |
6 Mbps/ch |
2.7/channel |
inter-vehicle, ~600 ft/hop |
| ethernet |
10 Mbps |
| 2.4 GHz 802.11b |
11 Mbps |
5.9 |
Wi-Fi, wireless ethernet |
| < 6 GHz 802.16e |
20 Mbps |
7 over 12 mi |
WiMAX wireless broadband |
| MOST |
25 Mbps |
|
car fiber, 2002+ |
| T3 |
45 Mbps |
|
past net backbone |
| OC-1 |
52 Mbps |
|
slowest fiber, not used |
| 5.9 GHz 802.11a |
54 Mbps |
24.4 |
Driveby InfoFueling |
| 2.4 GHz 802.11g |
54 Mbps |
25 |
Wi-Fi, wireless ethernet |
| 2.4/5.0 GHz 802.11n |
540 Mbps |
150 |
Wi-Fi Extreme |
| fast ethernet |
100 Mbps |
| OC-3 |
155 Mbps |
120 |
| OC-12 |
622 Mbps |
470 |
present net backbone |
| record over 6800 mi |
923 Mbps |
923 |
Stanford-Amsterdam |
| gigabit ethernet |
1 Gbps |
|
Telseon, Yipes |
| HDTV |
1.2 Gbps |
|
uncompressed video |
| MOST x 50 |
1.25 Gbps |
|
automobile glass fiber |
| OC-48 |
2.5 Gbps |
1.9 |
telco backbone |
| OC-192 |
10 Gbps |
7.5 |
popular, e.g. Qwest |
| fast gigabit ethernet |
10 Gbps |
|
|
|
| OC-48 with WDM |
40 Gbps |
|
wave division multiplexed |
| OC-768 |
40 Gbps |
|
"NExt step" |
| OC-3072 |
160 Gbps |
|
"Duh, that's pretty fast" |
| OC-768 w DWDM |
6.4 Tbps |
|
e.g. Enkido |
| DWDM |
10 Tbps |
|
in development |
| glass fiber |
75 Tbps |
|
fiber capacity |
|
kbps: Kilo bits per second 1,000 bps
Mbps: Mega bits per second 1,000,000 bps
Gbps: Giga bits per second 1,000,000,000 bps
Tbps: Tera bits per second 1,000,000,000,000 bps
Pbps: Peta bits per second 1,000,000,000,000,000 bps
Ebps: Exa bits per second 1,000,000,000,000,000,000 bps
Zbps: Zetta bits per second 1,000,000,000,000,000,000,000 bps
Ybps: Yotta bits per second 1,000,000,000,000,000,000,000,000 bps
With Wave Division Multiplexing (WDM), using different optical
wavelengths, the fiber bandwith can be increased by a factor of about 16.
"Narrowband dinosaurs" are deploying WDM since it is less expensive than
laying more fiber.
Dense Wave Division Multiplexing (DWDM) uses
high-Q laser photons with single lambda bandwidth, limited only by the
uncertainty principle discovered by Werner Heisenberg, allowing up to
10,000 adjacent channels within the amplifier gain!
WH Networks
|
|