A wireless LAN (WLAN) is a grouping of network components connected by electromagnetic (radio) waves instead of wires. WLANs are used to augment or replace wired computer networks, adding flexibility and freedom of movement within the workplace. Wireless LAN clients enjoy great mobility and can access information on the company network or even the Internet from the warehouse, boardroom or throughout the campus without relying on the availability of wired cables and connections.
Why choose a Wireless LAN?.
Today's businesses rely heavily on the ability to share information and resources. A wide variety of industries have discovered the benefits a WLAN can bring to daily tasks and to the balance sheet:.
• Mobility - WLANs allow users real-time access to information from anywhere in their organization, without having to find a place to connect to the network with a cable or wire, thereby increasing productivity .
• Reliability - Fewer wires and connectors mean fewer problems for users and network managers .
• Ease of Installation - WLANs do not require expensive and time-consuming cable installations, which is especially useful in difficult-to-wire areas - no drilling or dropping cables through walls and ceilings .
• Affordability - WLAN installation and product life costs can be significantly lower than those incurred with wired networks, especially in environments that require frequent moves and changes .
• Scalability - WLAN systems are easily configured and rearranged to accommodate a variety of office settings and number of users, from small to extensive. .
How a Wireless LAN works.
In a typical WLAN configuration, a transmitter/receiver device, or access point, connects to the wired network from a fixed location using standard Ethernet cable. The access point receives, buffers and transmits data between the components of the WLAN (laptops, printers, handheld devices and other wireless equipment) and the wired network infrastructure.