In communications, a channel access method is used to share a communications channel or physical communications medium between multiple users.
Examples of channel access methods:
- Frequency division multiple access (FDMA)
- Time-division multiple access (TDMA)
- Code division multiple access (CDMA)
- Frequency hopping spread spectrum (FHSS)
- Space division multiple access (SDMA)
- Wavelength division multiple access (WDMA)
- Carrier sense multiple access with collision detection (CSMA/CD)
Where these methods are used for dividing forward and reverse communication channels, they are known as duplexing methods, such as:
- Time division duplex (TDD)
- Frequency division duplex (FDD)
See also: