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Difference between BSS and ISS
  • Last Updated : 10 Nov, 2020

1. Basic Service Set (BSS) :
Basic Service Set (BSS) is a service set that provide medium for connecting and allowing communication among wireless components or devices. Here, medium is referred as Access Point (AP). AP is a device that allows wireless devices to get connect to wired network.

2. Independent Service Set (ISS) :
Independent Service Set (ISS) is a service set that does not require any medium for connecting and allowing communication among wireless components or devices.



Difference between BSS and ISS :

BSSISS
In BSS, wireless devices communicate through medium.In ISS, wireless devices communicate directly with each other without any medium.
BSS basically contain only one AP.ISS does not require any AP and therefore no AP is present in ISS.
BSS usually provide short range wireless communication as compared to ISS.ISS usually provide long range wireless communication as compared to BSS.
BSS does not support mobility i.e. user or client cannot move freely from one place to another.ISS supports mobility i.e. user or clients can move freely from one place to another while communicating with each other without any interruption.
Clients or users are connected through a medium i.e. AP.Clients or users are connected directly with each other without any need of AP.
Though BSS is easy, but it is rarely used.ISS is mostly used as compared to BSS.
BSS usually set up connection between many wireless devices.ISS usually set up connection between two or more fixed devices or laptops that needed to exchange files. There is no other network present.
It is also known as Infrastructure more.It is also known as ad-hoc mode or peer to peer mode.

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