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- Weighted_fair_queuing abstract "Weighted fair queuing (WFQ) is a data packet scheduling technique allowing different scheduling priorities to statistically multiplexed data flows. WFQ is a generalization of fair queuing (FQ). Both in WFQ and FQ, each data flow has a separate FIFO queue. In FQ, with a link data rate of , at any given time the active data flows (the ones with non-empty queues) are serviced simultaneously, each at an average data rate of . Since each data flow has its own queue, an ill-behaved flow (who has sent larger packets or more packets per second than the others since it became active) will only punish itself and not other sessions. As opposed to FQ, WFQ allows different sessions to have different service shares. If data flows currently are active, with weights data flow number will achieve an average data rate of It can be proven that when using a network with WFQ switches and a data flow that is leaky bucket constrained, an end-to-end delay bound can be guaranteed. By regulating the WFQ weights dynamically, WFQ can be utilized for controlling the quality of service, for example to achieve guaranteed data rate. Proportional fairness can be achieved by setting the weights to , where is the cost per data bit of data flow . For example in CDMA spread spectrum cellular networks, the cost may be the required energy (the interference level), and in dynamic channel allocation systems, the cost may be the number of nearby base station sites that can not use the same frequency channel, in view to avoid co-channel interference.".
- Weighted_fair_queuing wikiPageID "7460579".
- Weighted_fair_queuing wikiPageRevisionID "590263997".
- Weighted_fair_queuing hasPhotoCollection Weighted_fair_queuing.
- Weighted_fair_queuing subject Category:Routing_algorithms.
- Weighted_fair_queuing subject Category:Scheduling_algorithms.
- Weighted_fair_queuing type Abstraction100002137.
- Weighted_fair_queuing type Act100030358.
- Weighted_fair_queuing type Activity100407535.
- Weighted_fair_queuing type Algorithm105847438.
- Weighted_fair_queuing type Event100029378.
- Weighted_fair_queuing type Procedure101023820.
- Weighted_fair_queuing type PsychologicalFeature100023100.
- Weighted_fair_queuing type RoutingAlgorithms.
- Weighted_fair_queuing type Rule105846932.
- Weighted_fair_queuing type SchedulingAlgorithms.
- Weighted_fair_queuing type YagoPermanentlyLocatedEntity.
- Weighted_fair_queuing comment "Weighted fair queuing (WFQ) is a data packet scheduling technique allowing different scheduling priorities to statistically multiplexed data flows. WFQ is a generalization of fair queuing (FQ). Both in WFQ and FQ, each data flow has a separate FIFO queue. In FQ, with a link data rate of , at any given time the active data flows (the ones with non-empty queues) are serviced simultaneously, each at an average data rate of .".
- Weighted_fair_queuing label "Weighted fair queuing".
- Weighted_fair_queuing sameAs m.0262gj_.
- Weighted_fair_queuing sameAs Weighted_fair_queuing.
- Weighted_fair_queuing wasDerivedFrom Weighted_fair_queuing?oldid=590263997.
- Weighted_fair_queuing isPrimaryTopicOf Weighted_fair_queuing.