| Wireless Networks, as the term indicates is a set | | | | that are fixed that is their antennas do not move |
| of networks that work without the use of any | | | | frequently, whereas some are mobile and can |
| wires. Wireless Networks are basically used for | | | | easily move and work while changing the direction |
| communication purposes, over wireless voice | | | | of the antennas. and operate on licensed or |
| networks like mobiles and telephone networks. | | | | unlicensed ranges of the frequency spectrums. |
| For example CPDP (Cellular Digital Packet Data), | | | | Wireless Networks can be further categorized into |
| HSCSD (High Speed Circuit Switched Data), PDC-P | | | | two types, the Wide Area Network (WAN) and |
| (Packet Data Cellular) and GPRS (General Packet | | | | the Local Area Network (LAN). Wide Area |
| Radio Service). | | | | Networks include the networks used for |
| Some other wireless networks work on its own | | | | communication purposes like used by various |
| physical networks from large antenna devices | | | | telecom companies for mobiles. These make use |
| mounted on the towers like LMDS (Local Multipoint | | | | of the modern technologies like GSM /GPRS. On |
| Distribution Service) and MMDS (Multichannel | | | | the other, Wireless Local Area Networks provide |
| Multipoint Distribution Service). Bluetooth is another | | | | wireless connectivity within a limited area. It has |
| technology that works only on small devices over | | | | its application in high data transfer rate commonly |
| short distances. | | | | used in hospitals and industries. It makes use of |
| Wireless Networks usually run over other | | | | the latest technology like WiFi. |
| networks and utilize the lower layer networks for | | | | These networks have an advantage over the |
| security and encryption. On the contrary, Stand | | | | other networks that makes it most commonly |
| alone these either have their own security and | | | | used. Some of its features like convenience to |
| encryption features or rely on the Virtual Private | | | | use, mobility of use, productivity of work, ease in |
| Networks (VPN's) for the same. In rare cases, | | | | deployment and its cheap cost make it rank |
| multiple layers are used for security and | | | | outstanding among other networks. |
| encryption. There are some wireless networks | | | | |