Glossary

PIFS – PCF Interframe Space
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PIFS – PCF Interframe Space

PIFS are found in IEEE 802.11 networks. When the radio link has been free of any traffic for a period greater than the PIFS, Stations operating in contention free mode may have immediate access to the medium. As such, PIFS has a shorter duration than DIFS (DCF Interframe Space) which is used in the contention based mode.

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