Editing Multiplexing (section)

==Multiple access method==
A multiplexing technique may be further extended into a [[multiple access method]] or [[channel access method]], for example, TDM into [[time-division multiple access]] (TDMA) and statistical multiplexing into [[carrier-sense multiple access]] (CSMA). A multiple-access method makes it possible for several transmitters connected to the same physical medium to share their capacity.

Multiplexing is provided by the [[physical layer]] of the [[OSI model]], while multiple access also involves a [[media access control]] protocol, which is part of the [[data link layer]].

The Transport layer in the OSI model, as well as TCP/IP model, provides statistical multiplexing of several application layer data flows to/from the same computer.

[[Code-division multiplexing]] (CDM) is a technique in which each channel transmits its bits as a coded channel-specific sequence of pulses. This coded transmission is typically accomplished by transmitting a unique time-dependent series of short pulses, which are placed within chip times within the larger bit time. All channels, each with a different code, can be transmitted on the same fiber and asynchronously demultiplexed. Other widely used multiple access techniques are [[time-division multiple access]] (TDMA) and [[frequency-division multiple access]] (FDMA).
Code-division multiplex techniques are used as an access technology, namely code-division multiple access (CDMA), in Universal Mobile Telecommunications System (UMTS) standard for the third-generation (3G) mobile communication identified by the ITU.{{citation needed|date=June 2018}}