Simply we can say that how computers are organized and how tasks are allocated to the computer. The architecture of the IEEE 802.11 WLAN is designed to support a network where most decision making is distributed to mobile stations. WiFi or WLAN uses high-frequency radio waves instead of cables for connecting the devices in LAN. Also referred Radio LAN (WLAN) if the communication medium is the radio (not light infrared for example).The stations of the wireless network can communicate directly with each other, we called Ad Hoc network type, or via relay terminals called APs (Access Points, PA) … IEEE 802.11 Wireless LAN Standard Chapter 14 IEEE 802 Protocol Layers Protocol Architecture Functions of physical layer: Encoding/decoding of signals Preamble generation/removal (for synchronization) Bit transmission/reception Includes specification of the transmission medium Protocol Architecture Functions of medium access control (MAC) layer: A computer’s wireless adaptor transfers the data into a radio signal and transfers the data into an antenna for users. Tutorial #2 (7:30 - 8:50 pm): Local MAC Addresses in the IEEE 802 Overview and Architecture based on IEEE Std 802c . The two types of network architectures are used: Peer-To-Peer network It is making a popular choice for home and business networks. Computer Network Architecture. The components of an IEEE 802.11 architecture … Users connected by WLANs can move around within the area of network coverage. Users connected by WLANs can move around within the area of network coverage. We are talking of Wireless LAN (WLAN) that is to say, "Wireless LAN", not to be confused with WAN course. WLANs can be broadly classified into two types, namely Infrastructure networks and Ad hoc LANs, based on the underlying architecture. Computer Network Architecture is defined as the physical and logical design of the software, hardware, protocols, and media of the transmission of data. Network architecture describes the types of WLANs, the components of a typical WLAN and the services offered by a WLAN. IEEE 802.11 Architecture and Services 7. IEEE 802.11 Architecture Submitted by gc on Mon, 02/18/2013 - 07:40 Each computer, mobile, portable or fixed, is referred to as a station in 802.11 [ Wireless Local Area Networks ]. It is commonly called a wireless LAN (local area network). A Computer Science portal for geeks. Computer networks that are not connected by cables are called wireless networks. WiFi technology allows local area networks to operate without cable and wiring. WLAN or WiFi uses high frequency radio waves instead of cables for connecting the devices in LAN. IEEE 802.11 Architecture. Infrastructure based versus Ad Hoc LANs. They generally use radio waves for communication between the network nodes. It contains well written, well thought and well explained computer science and programming articles, quizzes and practice/competitive programming/company interview Questions. An extended service set (ESS) consists of two or more basic service sets interconnected by a distribution system To integrate the IEEE 802.11 architecture with a traditional wired LAN, a portal is used IEEE 802.11 Architecture and Services 8. Presentation; Pat Thaler, Broadcom; Roger Marks , EthAirNet Associates; Sponsored by Glenn Parsons, Chair, IEEE 802.1 WG Chair WLAN, Bluetooth, ... Wireless & Mobility Wireless: oLimited bandwidth oBroadcast medium: requires multiple access schemes oVariable link quality (noise, interference) oHigh latency, higher jitter oHeterogeneous air interfaces oSecurity: easier snooping Mobility: Network Architecture. Infrastructure networks This type of architecture has several advantages. It is tolerant of faults in all of the WLAN equipment and eliminates possible bottlenecks a centralized architecture would introduce. The IEEE 802.11 standard, lays down the architecture and specifications of wireless local area networks (WLANs). The WLAN equipment and eliminates possible bottlenecks a centralized architecture would introduce data. Are organized and how tasks are allocated to the computer WLAN uses high-frequency radio waves instead of cables for the! 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