DIFS
From Wikipedia, the free encyclopedia
DCF Interframe Space (DIFS) is a period of time for which a station waits after it has found the channel idle. In the DCF protocol defined by IEEE 802.11 wireless LAN standard at the MAC sublayer, a station senses the medium when it wants to start a communication. The station uses a persistence strategy with back-off until it finds the channel idle. After it finds the channel idle, it waits for a period of time called Distributed Interframe Space (DIFS) and then sends an RTS signal.
[edit] See also
- SIFS - Short Interframe Space
- PCF - Point Coordination Function
