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Code-division multiple access (CDMA) is a channel access method used by various radio communication technologies. CDMA is an example of multiple access , where several transmitters can send information simultaneously over a single communication channel.
Arrayed waveguide grating – Optical multiplexer component; Code-division multiple access – Channel access method used by various radio communication technologies; Dark fiber – Unused optical fibre; Frequency-division multiplexing – Signal processing technique in telecommunications; IPoDWDM – IP-only optical network
Paul R. Prucnal (born 1953) is an American electrical engineer. He is a professor of electrical engineering at Princeton University.He is best known for his seminal work in Neuromorphic Photonics, [1] optical code division multiple access (OCDMA) and the invention of the terahertz optical asymmetric demultiplexor (TOAD). [2]
The code-division multiple access (CDMA) scheme is based on spread spectrum, meaning that a wider radio channel bandwidth is used than the data rate of individual bit streams requires, and several message signals are transferred simultaneously over the same carrier frequency, utilizing different spreading codes.
Code-division multiplexing (CDM), code-division multiple access (CDMA) or spread spectrum is a class of techniques where several channels simultaneously share the same frequency spectrum, and this spectral bandwidth is much higher than the bit rate or symbol rate. One form is frequency hopping, another is direct sequence spread spectrum.
Multi-carrier code-division multiple access (MC-CDMA) is a multiple access scheme used in OFDM-based telecommunication systems, allowing the system to support multiple users at the same time over same frequency band. MC-CDMA spreads each user symbol in the frequency domain.
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Multiple access capability, known as code-division multiple access (CDMA) or code-division multiplexing (CDM). Multiple users can transmit simultaneously in the same frequency band as long as they use different spreading sequences.