IEEE 802.11 MAC - CSMA/CA t. medium busy. DIFS. next frame. contention window. (randomized back-off mechanism)
{"Image DocumentName": "IEEE MAC - CSMA/CAt. medium busy. DIFS. next frame. contention window. (randomized back-off mechanism)", "Image ImageDescription": "slot time. direct access if medium is free \uf0b3 DIFS. station ready to send starts sensing the medium (Carrier Sense based on CCA, Clear Channel Assessment) if the medium is free for the duration of an Inter-Frame Space (IFS), the station can start sending (IFS depends on service type) if the medium is busy, the station has to wait for a free IFS, then the station must additionally wait a random back-off time (collision avoidance, multiple of slot-time) if another station occupies the medium during the back-off time of the station, the back-off timer stops (fairness)", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}