# Packet aggregation

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{{Short description|Combining data packets to reduce overhead}}
{{Use American English |date=March 2019}}
{{Use mdy dates |date=March 2019}}
{{More citations needed |date=February 2024}}
In a packet-based communications network, '''packet aggregation''' is the process of joining multiple packets together into a single [transmission unit](/source/Network_packet), in order to reduce the overhead associated with each transmission.<ref name="magh12" />

Packet aggregation is useful in situations where each transmission unit may have significant overhead ([preamble](/source/syncword)s, headers, [cyclic redundancy check](/source/cyclic_redundancy_check), etc.) or where the expected packet size is small compared to the maximum amount of information that can be transmitted.

In a communication system based on a layered [OSI model](/source/OSI_model), packet aggregation may be responsible for joining multiple [MSDU](/source/MSDU)s into a single [MPDU](/source/MPDU) that can be delivered to the [physical layer](/source/physical_layer) as a single unit for transmission.

The [ITU-T](/source/ITU-T) [G.hn](/source/G.hn) standard, which provides a way to create a high-speed (up to 1 Gigabit/s) [Local area network](/source/Local_area_network) using existing home wiring ([power lines](/source/Power_line_communication), phone lines and [coaxial cables](/source/Ethernet_over_coax)), is an example of a protocol that employs packet aggregation to increase efficiency.

== See also ==
* [Packet segmentation](/source/Packet_segmentation)
* [Frame aggregation](/source/Frame_aggregation)

==References==
<references>

<ref name="magh12">{{cite conference |title=Packet Aggregation in Multi-Rate Wireless LANs |last1=Majeed |first1=Adnan |last2=Abu-Ghazaleh |first2=Nael |date=June 2012 |pages=452–460 |conference=9th Annual IEEE Communications Society Conference on Sensor, Mesh and Ad Hoc Communications and Networks (SECON), 2012 |volume=1 |url=https://www.researchgate.net/profile/Nael-Abu-Ghazaleh/publication/261432916_Packet_aggregation_in_multi-rate_wireless_LANs/links/56bb92cc08ae2481ab6aca26/Packet-aggregation-in-multi-rate-wireless-LANs.pdf |isbn=978-1-4673-1904-1 |doi=10.1109/SECON.2012.6275811 |access-date=2024-02-12 }}</ref>

</references>

Category:Packets (information technology)

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Adapted from the Wikipedia article [Packet aggregation](https://en.wikipedia.org/wiki/Packet_aggregation) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Packet_aggregation?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.