Wireless: Radio-based systems that allow transmission of information without a physical connection, opposed to transmission systems, that require a physical connection, such as copper wire or optical fiber.

Common Types of Wireless Networks

Type Stands for (or relates to) ...
CDPD Cellular Digital Packet Data
HSCSD High Speed Circuit Switched Data
PDC-P Packet Data Cellular
GPRS General Packet Radio Service
1xRTT 1x Radio Transmission Technology
Bluetooth n/a
IrDA n/a
MMDS Multichannel Multipoint Distribution Service
LMDS Local Multipoint Distribution Service
WiMAX Worldwide Interoperability for Microwave Access
802.11 Wi-Fi