Why do we need wireless LAN? Explain the architecture of IEEE 802.11 in detail.

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Suresh Chand · Accepted Answer

We need wireless LAN because of the following reasons It’s a reliable sort of communication. As WLAN reduces physical wires so it’s a versatile way of communication. WLAN also reduces the value of ownership. It’s easier to feature or remove workstation. It provides high rate thanks to small area coverage. You’ll also move workstation while maintaining the connectivity. For propagation, the sunshine of sight isn’t required. The direction of connectivity are often anywhere i.e. you’ll connect devices in any direction unless it’s within the range of access point. Easy installation and you would like don’t need extra cables for installation. WLAN are often useful in disasters situation e.g. earthquake and fire. WIreless network can connect people in any disaster It’s economical due to the tiny area access. The  amount of power it requires is more as it uses transmitter; therefore, the battery life of laptops can be affected IEEE 802.11 Architecture: The components of an IEEE 802.11 architecture are as follows − Stations (STA) − Stations comprises of all devices and equipment that are connected to the wireless LAN. A station can be of two types− Wireless Access Point (WAP) − WAPs or simply access points (AP) are generally wireless routers that form the base stations or access. Client. Clients are workstations, computers, laptops, printers, smartphones, etc. Each station has a wireless network interface controller. Basic Service Set (BSS) − A basic service set is a group of stations communicating at the physical layer level. BSS can be of two categories depending upon the mode of operation− Infrastructure BSS − Here, the devices communicate with other devices through access points. Independent BSS − Here, the devices communicate in a peer-to-peer basis in an ad hoc manner. Extended Service Set (ESS) − It is a set of all connected BSS. Distribution System (DS) − It connects access points in ESS.

Why do we need wireless LAN? Explain the architecture of IEEE 802.11 in detail.

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Why do we need wireless LAN? Explain the architecture of IEEE 802.11 in detail.

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