Dynamic bandwidth allocation: Difference between revisions

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{{Expert-subjectShort description|Telecommunications|date=November 2008resource sharing technique}}

{{UnreferencedMore citations needed|date=February 20082024}}

'''Dynamic bandwidth allocation''' is a technique by which traffic bandwidth in a shared telecommunications medium can be allocated on demand and fairly between different users of that bandwidth.<ref>{{Cite Thisweb is|last=Tatum a|first=Malcolm form|date=18 ofJanuary [[bandwidth2024 management]],|title=What andIs Dynamic Bandwidth Allocation? |url=https://www.easytechjunkie.com/what-is-dynamic-bandwidth-allocation.htm essentially|access-date=5 theFebruary same2024 thing|website=EasyTechJunkie}}</ref> asThis is a form of [[statisticalbandwidth multiplexingmanagement]].{{disputed-inline|Merge with statistical multiplexing?}}, Wherewhere the sharing of a link adapts in some way to the instantaneous traffic demands of the nodes connected to the link.

Dynamic bandwidth allocation takes advantage of several attributes of shared networks:

(1) all users are typically not connected to the network at one time

(2)# even when connected,all users are typically not transmittingconnected datato (orthe voice or video)network at allone timestime

# even when connected, users are not transmitting data (or voice or video) at all times

(3)# most traffic isoccurs "bursty"in -- therebursts—there are gaps between packets of information that can be filled with other user traffic

Different network protocols implement dynamic bandwidth allocation in different ways. These methods are typically defined in [[Standardization|standard]]s developed by standards bodies such as the [[ITU]], [[IEEE]], [[FSAN]], or [[IETF]]. One example is defined in the ITU G.983 specification for [[passive optical network]] (PON).

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* [[Statistical multiplexing]]

* [[Channel access method]]

* [[Time division duplex]] (TDD)

* [[Bandwidth Controller]]

* [[Dynamic TDMA]]

* [[Reservation ALOHA]] (R-ALOHA)

* [[Packet reservation multiple access]] (PRMA)

* [[OFDMA]]

* [[CDMA]]

* [[Dynamic channel allocation]]

* [[Reservation ALOHA]] (R-ALOHA)

* [[Interleaved polling with adaptive cycle time]] (IPACT)

* [[Bandwidth guaranteed polling]] (BGP)

==References==

* [[Fair Queuing with Service Envelopes (FQSE)]]

{{reflist}}

* [[Limited Allocation with Excess Redistribution (LAER+EA)]]

* [[Hybrid granting]]

* [[Modified Token-bucket]]

{{Channel access methods}}

[[Category:TelecommunicationsComputer networks engineering]]

[[Category:ComputerTelecommunications networkingtechniques]]

[[Category:Radio resource management]]

{{compu-network-stub}}