FREQUENCY Division Multiple Access or FDMA is a CHANNEL access method used in multiple-access protocols as a channelization protocol. FDMA gives users an individual allocation of one or several frequency bands, or channels. Multiple Access systems coordinate access between multiple users. The users may also share access via different methods such as TDMA, CDMA, or SDMA. These protocols are utilized DIFFERENTLY, at different LEVELS of the theoretical OSI model.

Disadvantage: Crosstalk which causes interference on the other frequency and may disrupt the transmission.

Frequency Division Multiple Access or FDMA is a channel access method used in multiple-access protocols as a channelization protocol. FDMA gives users an individual allocation of one or several frequency bands, or channels. Multiple Access systems coordinate access between multiple users. The users may also share access via different methods such as TDMA, CDMA, or SDMA. These protocols are utilized differently, at different levels of the theoretical OSI model.

Disadvantage: Crosstalk which causes interference on the other frequency and may disrupt the transmission.