Thomas Kunz
Systems and Computer Engineering
 Wireless systems:
overview of the development
cellular phones
satellites
wireless LAN
cordless
phones
1992:
GSM
1994:
DCS 1800
2001:
IMT-2000
1987:
CT1+
1982:
Inmarsat-A
1992:
Inmarsat-B
Inmarsat-M
1998:
Iridium
1989:
CT 2
1991:
DECT
199x:
proprietary
1997:
IEEE 802.11
1999:
802.11b, Bluetooth
1988:
Inmarsat-C
analogue
digital
1991:
D-AMPS
1991:
CDMA
1981:
NMT 450
1986:
NMT 900
1980:
CT0
1984:
CT1
1983:
AMPS
1993:
PDC
4G – fourth generation: when and how?
2000:
GPRS
2000:
IEEE 802.11a
200?:
Fourth Generation
(Internet based)