code-division multiple access


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code-division multiple access

[′kōd də¦vizh·ən ′məl·tə·pəl ′ak‚ses]
(communications)
The transmission of messages from a large number of transmitters over a single channel by assigning each transmitter a pseudorandom noise code (typically more than 2000 symbols long for each bit of information) so that the codes are mathematically independent of each other. Abbreviated CDMA.
References in periodicals archive ?
Prucnal (electrical engineering, Princeton University) offers a comprehensive treatment of optical code-division multiple access (OCDMA) technology and systems.
With millions of Global System for Mobile Communication (GSM) and Code-Division Multiple Access (CDMA) subscribers, and a growing portfolio of innovative mobile voice and multimedia services, China Unicom can now apply and enforce IP traffic management policies that support QoS across its network with Caspian's Media Controllers.
The specification includes two technologies that achieve that goal: an advanced form of time-division multiple access, and synchronous code-division multiple access.
Wideband code-division multiple access (W-CDMA) is a 3G mobile communications standard offering data speeds to wireless devices that are significantly higher than those offered by the current generation of technology.
Santa Clara based AirPrime will provide an integrated wireless access device that will allow the Orbit Web Tablet to operate on Code-Division Multiple Access (CDMA) based networks, the network technology of companies like Sprint and Verizon.
The software manages performance statistics collected from Smartcom's PCS network, which is based on code-division multiple access (CDMA) technology supplied by Alcatel and Ericsson Wireless Technologies.
AT&T's network is based on time-division multiple access (TDMA) technology, while Sprint's network runs on code-division multiple access (CDMA) technology," says Mr.
With high maximum-power and peak-power specifications, the HP E9300 sensors can handle the large crest factors typical of the newest signal modulation formats, such as wideband code-division multiple access (W-CDMA) and orthogonal-frequency-division multiplexing (OFDM).
Clearnet will rely on Metrica/NPR (network performance reporting) to manage performance statistics collected from both its national Clearnet personal communications services (PCS) network, which is based on code-division multiple access (CDMA) technology supplied by Lucent Technologies, and its Mike enhanced specialized mobile radio (ESMR) network, based on Motorola's iDEN technology.