Wireless Media Access Control (Slide 4)
The rules of CSMA algorithm
- Transmitting station senses the medium and may transmit if it finds the medium to be idle for one IFS.
- In case the medium is found busy, transmitting station defers transmission and continues to sense the medium until current transmission ends.
- If the medium is found busy over another IFS, transmitting station backs of for a random period of time and tries again later using a binary exponential backoff algorithm.