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coordination function

См. также в других словарях:

  • Distributed Coordination Function — (DCF) is the fundamental MAC technique of the IEEE 802.11 wireless LAN standard. DCF employs a CSMA/CA distributed algorithm and an optional virtual carrier sense using RTS and CTS control frames. DCF requires a station wishing to transmit to… …   Wikipedia

  • Distributed coordination function — (DCF) is the fundamental MAC technique of the IEEE 802.11 based WLAN standard. DCF employs a CSMA/CA with binary exponential backoff algorithm. DCF requires a station wishing to transmit to listen for the channel status for a DIFS interval. If… …   Wikipedia

  • Point Coordination Function — Point Coordinated Function is a Media Access Control (MAC) technique used in wireless networks which relies on a central node, often an Access Point (AP), to communicate with a node listening, to see if the airwaves are free (ie, all other nodes… …   Wikipedia

  • Distributed Coordination Function — (DCF) ist ein Mechanismus bei WLAN (nach IEEE 802.11) mit dem der nicht deterministische Zugriff von mehreren Teilnehmern auf das Funknetz geregelt wird. Der DCF Mechanismus unterstützt Sprach und Multimedia Anwendungen in WLANs in Bezug auf… …   Deutsch Wikipedia

  • Point Coordination Function — (PCF) ist ein Medienzugriffsverfahren, welches in WLANs eingesetzt wird. Dieses Verfahren arbeitet mit einer zentralen Station, oftmals einem Access Point, um den Zugriff der einzelnen Stationen zu koordinieren. Durch die zentrale Steuerung… …   Deutsch Wikipedia

  • Carrier Sense Multiple Access / Collision Avoidance Point Coordination Function — ist ein Verfahren zur Vermeidung von Kollisionen in drahtlosen Netzwerken (Wireless LANs), bei dem der Access Point den Medienzugriff zentral steuert. Dazu richtet der Access Point neben der Wettbewerbsperiode (CP, Contention Period) eine… …   Deutsch Wikipedia

  • Coordination — is the act of coordinating, making different people or things work together for a goal or effect to fulfill desired goals in an organization.Coordination is a managerial function in which different activities of the business are properly adjusted …   Wikipedia

  • Coordination (linguistics) — In linguistics, a coordination is a complex syntactic structure that links together two or more elements, known as conjuncts or conjoins. Coordinators are typically: and and or . The word but is also often considered a coordinator although it may …   Wikipedia

  • coordination compound — Chem. complex (def. 10). Also called coordination complex. * * * ▪ chemistry Introduction  any of a class of substances with chemical structures in which a central metal atom is surrounded by nonmetal atoms or groups of atoms, called ligands… …   Universalium

  • Coordination number — In chemistry and crystallography, the coordination number of a central atom in a molecule or crystal is the number of its nearest neighbours. This number is determined somewhat differently for molecules and for crystals. In chemistry, the… …   Wikipedia

  • Function composition (computer science) — In computer science, function composition (not to be confused with object composition) is an act or mechanism to combine simple functions to build more complicated ones. Like the usual composition of functions in mathematics, the result of the… …   Wikipedia

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