The fitting one of Access Point could widen the range from the network ad hoc, that could double the range from two equipments that communicated with each other. For Access Point connecting with the network of the cable, each client could access resources server like the other client. Each of Access Point could support several clients; his certain number depended on the number of numbers and the characteristics on the supportive transmission. Several of his applications proved that one Access Point could serve the client totalling 15-50. Access Points had the limited range, that is approximately 500 feet for the room was closed (indoor) and 1000 feet for the room was open (outdoors). To the area that was big enough like the storage warehouse and the campus of the possibility tertiary institution to be able to be installed by Access Point more than one. Access Point could be placed before through the study of the place or the area. His aim that is to cover the range with the scope cell that overlapping so as the client could be connected in any area without losing communication with the network. The client's capacity to move around a A group of Access Points was mentioned with the exploration (roaming). Access Points handled the client to be connected with each other without the existence lost communication.
To overcome the problem topologi, the network planner of the possibility of choosing to use Extension Points to widen the network from Access Points. Extension Points apparently had the function that was the same as Access Points, but they were not tied with the network of the cable like AP. Fungsi EP like his name that is: they to increase the range of the network with me-relay the signal from the client headed AP and EP that was other. Each of EP was possibly tied by each other in order to be able to connect AP with the very far-apart client.
Equipment wireless LAN finally that must be considered that is antennae directional. Regarded you had wireless LAN in the A building and wanted to be connected with the B building that be at a distance one mile. His solution that is with put on directional antenna to each building, each antenna that directed each other. Antenna was to the A building connected with the network of the cable through Access Point. Antenna to the B building also was connected with Access Point, so as wireless LAN could communicate with each other.
Referensi
http://www.breeze.com
http://www.proxim.com
http://www.wlana.com