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infrastructure mode

WLANs according to IEEE 802.11 can be operated in two different modes. There is the ad hoc mode and the infrastructure mode. In ad-hoc mode, communication takes place directly between two clients always via a point-to-point connection. Ad hoc networks have no central control and management components. The situation is different for infrastructure networks, where a central access point( AP) forms the infrastructure component.

WLANs with usually operate with a central infrastructure component formed by the access point (AP). The various clients in the form of tablets, smartphones, desktops or notebooks are connected to the access point. Likewise, there are connections to access points from other WLANs, to the Internet and to other resources such as printers. All connections run via the access point (AP). The access point and the stations registered with it form the Basic Service Set( BSS), a radio cell. If more than two Basic Service Sets form a radio network, then it is an Extended Service Set( ESS). In all configurations, the connected stations communicate with each other using the same Service Set Identification( SSID).

Independent Basic Service Set (IBSS) and Infrastructure Basic Service Set

Independent Basic Service Set (IBSS) and Infrastructure Basic Service Set

In addition to central control of the stations, the access point also handles connections to wired local networks, as well as to mobile or fixed networks. Infrastructure mode offers advantages in terms of security mechanisms, since these are managed centrally by the access point. In addition, the infrastructural network configuration has higher performance compared to ad hoc networks. Most enterprise wireless LANs operate in infrastructure mode because they need access to the wired local area network( LAN) to use services such as file servers or printers.

Englisch: infrastructure mode
Updated at: 07.02.2021
#Words: 274
Links: IEEE 802.11, mode, infrastructure, indium (In), communication (COM)
Translations: DE

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