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- Subcarrier_multiplexing abstract "Subcarrier Multiplexing (SCM) is a method for combining (multiplexing) many different communications signals so that they can be transmitted along a single optical fiber. SCM (also known as SCMA, SubCarrier Multiple Access) is used in passive optical network (PON) access infrastructures as a variant of wavelength division multiplexing (WDM).SCM follows a different approach compared to WDM. In WDM an optical carrier is modulated with a baseband signal of typically hundred of Mbit/s. In an SCMA infrastructure, the baseband data is first modulated on a GHz wide subcarrier, that is subsequently modulated on the optical carrier. This way each signal occupies a different portion of the optical spectrum surrounding the centre frequency of the optical carrier. At the receiving side, as normally happens in a commercial radio service, the receiver is tuned to the correct subcarrier frequency, filtering out the other subcarriers. The operation of multiplexing and demultiplexing the single subcarriers is carried out electronically. The conversion into the optical carrier is done at the multiplexer side. This gives an advantage over a pure WDM access, due to the lower cost of the electrical components if compared with an optical multiplexer. SCM has the disadvantage of being limited in maximum subcarrier frequencies and data rates by the available bandwidth of the electrical and optical components. Therefore, SCM must be used in conjunction with WDM in order to take advantage of most of the available fiber bandwidth, but it can be used effectively for lower-speed, lower-cost multiuser systems.".
- Subcarrier_multiplexing wikiPageExternalLink Hui2002_Hui2002JoLTpp417.pdf.
- Subcarrier_multiplexing wikiPageExternalLink wdm.htm.
- Subcarrier_multiplexing wikiPageID "11145095".
- Subcarrier_multiplexing wikiPageRevisionID "525874159".
- Subcarrier_multiplexing hasPhotoCollection Subcarrier_multiplexing.
- Subcarrier_multiplexing subject Category:Broadcast_engineering.
- Subcarrier_multiplexing subject Category:Digital_radio.
- Subcarrier_multiplexing subject Category:Digital_television.
- Subcarrier_multiplexing subject Category:Multiplexing.
- Subcarrier_multiplexing subject Category:Physical_layer_protocols.
- Subcarrier_multiplexing type Abstraction100002137.
- Subcarrier_multiplexing type Communication100033020.
- Subcarrier_multiplexing type Direction106786629.
- Subcarrier_multiplexing type Message106598915.
- Subcarrier_multiplexing type PhysicalLayerProtocols.
- Subcarrier_multiplexing type Protocol106665108.
- Subcarrier_multiplexing type Rule106652242.
- Subcarrier_multiplexing comment "Subcarrier Multiplexing (SCM) is a method for combining (multiplexing) many different communications signals so that they can be transmitted along a single optical fiber. SCM (also known as SCMA, SubCarrier Multiple Access) is used in passive optical network (PON) access infrastructures as a variant of wavelength division multiplexing (WDM).SCM follows a different approach compared to WDM. In WDM an optical carrier is modulated with a baseband signal of typically hundred of Mbit/s.".
- Subcarrier_multiplexing label "Subcarrier multiplexing".
- Subcarrier_multiplexing sameAs m.02r1jms.
- Subcarrier_multiplexing sameAs Q7630912.
- Subcarrier_multiplexing sameAs Q7630912.
- Subcarrier_multiplexing sameAs Subcarrier_multiplexing.
- Subcarrier_multiplexing wasDerivedFrom Subcarrier_multiplexing?oldid=525874159.
- Subcarrier_multiplexing isPrimaryTopicOf Subcarrier_multiplexing.