WIFI and WLAN 1

802.11 WLAN standard approved by the IEEE in 1997. This standard applies to speed 1 Mbps and 2MBps. Standard is focused on the layer 1 and 2 of the OSI model physical layer and data link layer. To meet the needs of a higher speed then in 1999 was issued with the standard 802.11b speed 5.5Mbps and 11Mbps.

Benefits of Using Wireless

The business world in various sizes are very fortunate to operate with the WLAN system that is able to give a good combination between truput yan approaching cable network, mobile access, and the configuration fleksible. Economic advantages that will be able to achieve U.S. $ 16,000 / user (in U.S.) - the measure of worker productivity, effisiensi organization, benefits, and cost savings - in comparing alternative cables. Some of the WLAN is a main advantage:

* Mobility which will increase productivity with real-time access to information, no matter the location of workers, so that more & more quickly effisien in decision making.
* Set up the network more cost effective than the locations that are difficult to install cables in older buildings such as the wall or building a masif.
* Reduced cost of ownership - especially in a dynamic environment that requires modifications very often - we must be grateful because at least the cost of wiring and installation of equipment and per-per-user.
* WLAN liberate users from dependence on access to cable backbone network, giving them access to the network anytime, anywhere. Roaming the freedom to provide many benefits in various work environments, such as:
o Access information directly on the side of the bed for the patient medical & hospital staff.
o Convenience, access to the network in real-time for the auditor / consultant on-site.
o Easy access database supervisor for the move, as manager in the production line, warehouse auditor, and engineer in the construction.
o Create a network configuration is simple without the need for involvement of MIS in the setup as temporary exhibition or conference room.
o faster access to information about customers by vendors / retailers that caused a customer service improvement and customer satisfaction improvement.
o Access to the network that is not bound by the network administrator for the location, easy to support on-site at the time of troubleshooting & support.
o Access real-time meetings for study groups for students / college students.

Therefore, the advantages offered by WLAN, especially protable, ease of installation and practicality. The factor that is very interesting from the WLAN is easy, because it allows flexibility and roaming. A user does not need to be tied in a LAN, he can move without the need komunikasinya lost relationship. In addition, WLAN is also easy to install, to build the entire network needs only a few hours later in the day if you compare some of our cables. Also, can the installation of WLAN in the area where rewriring not possible. This cable system without the installation can be in different environments, and users can communicate with the network of cables through the access point (AP) or wireless adapter.