(from Electronic Design 09/15/05)
Technology
Frequency
Modulation
Standard
Maximum range
Data rate
Applications
Bluetooth
2.4 GHz
FHSS/GMSK
Bluetooth SIG and IEEE 802.15.3
30 m
1.0, 3.0 Mbits/s
Cable replacement, cell-phone headsets, peripherals
CDMA2000 (1xRTT, EV-DO)
800/900 and 1800/1900 MHz
DSSS, QPSK
TIA
10 km (avg.)
157 kbits/s, 2Mbits/s
Email, photos, SMS, Internet access
GSM (GPRS, EDGE)
800 to 900, 1800, 1900 MHz
GMSK, 8PSK
ETSI, ITU
10 km (avg.)
128, 384 kbits/s
Email, photos, SMS, Internet access
Infrared (IR)
850 nm
Baseband
IrDA
3 m
16Mbits/s
Peripheral laptop and cell-phone [...]