Wireless

Wireless data networks exist in such a number and variety, as to be difficult to categorize and compare.

Some wireless data networks run over voice networks, such as mobile telephone networks. CPDP, HSCSD, PDC-P, and GPRS are examples. Other networks run on their own physical layer networks, utilizing anything from antennas built into hand held devices to large antennas mounted on towers. 802.11, LMDS, and MMDS are examples. A few networks are intended only to connect small devices over short distances. Bluetooth is an example. Check the below table for further examples of various major networks.

Networks which run over other networks often utilize the lower layer networks to provide security and encryption. Stand alone wireless networks either provide their own security and encryption features or rely upon VPN's (Virtual Private Networks) to provide those features. In many cases, multiple layers of security and encryption may be desirable or necessary.

Some networks are fixed, meaning that antennas do not move frequently. Other networks are mobile, meaning that the antenna can move constantly. This is sometimes a feature of the specific implementation and antenna design, instead of an inherent limitation of the network specification.

Networks may operate on licensed or unlicensed portions of the frequency spectrum.

Common Network Types

Major types of networks include:

Be sure to do your due diligence.