Contention-free pollable (CF-Pollable) is a state of operation for
wireless networking
A wireless network is a computer network that uses wireless data connections between network nodes.
Wireless networking is a method by which homes, telecommunications networks and business installations avoid the costly process of introducing ...
nodes. The condition is saying that the node is able to use the
Point Coordination Function
Point coordination function (PCF) is a media access control (MAC) technique used in IEEE 802.11 based WLANs, including Wi-Fi. It resides in a point coordinator also known as access point (AP), to coordinate the communication within the network. ...
, as opposed to the
Distributed Coordination Function
Distributed coordination function (DCF) is the fundamental medium access control (MAC) technique of the IEEE 802.11-based WLAN standard (including Wi-Fi). DCF employs a carrier-sense multiple access with collision avoidance
Carrier-sense mult ...
, within a wireless LAN.
A device that is able to use point coordination function is one that is able to participate in a method to provide limited
Quality of service
Quality of service (QoS) is the description or measurement of the overall performance of a service, such as a telephony or computer network, or a cloud computing service, particularly the performance seen by the users of the network. To quantitat ...
(for time sensitive data) within the network.
See also
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Contention (telecommunications)
In statistical time division multiplexing, contention is a media access method that is used to share a broadcast medium. In contention, any computer in the network can transmit data at any time (first come-first served).
This system breaks down ...
References
{{DEFAULTSORT:Contention Free Pollable
Wireless networking