Code Division Multiple Access


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Related to Code Division Multiple Access: GSM, Time division multiple access

Code Division Multiple Access

(communications)
(CDMA) (Or "spread spectrum") A form of multiplexing where the transmitter encodes the signal using a pseudorandom sequence which the receiver also knows and can use to decode the received signal. Each different random sequence corresponds to a different communication channel.

Motorola uses CDMA for digital cellular phones. Qualcomm pioneered the introduction of CDMA into wireless telephone services.
References in periodicals archive ?
It has been widely deployed in Wideband Code Division Multiple Access (W-CDMA) and CDMA2000 handsets, and is also regarded as a preferred data solution for TD-SCDMA handsets.
QUALCOMM Incorporated (Nasdaq: QCOM), pioneer and world leader of Code Division Multiple Access (CDMA) digital wireless technology, and SanDisk Corporation (Nasdaq: SNDK), the world's largest supplier of flash memory cards, recently announced support for removable miniSD and SD cards in QUALCOMM Mobile Station Modem (MSM) chipsets.
Sprint partnered with Navini Networks and IP-Wireless for trials of each company's technology, the former's based on 2.4GHz and 2.6GHz Multichannel Multipoint Distribution System (MMDS) frequencies, the latter on Universal Mobile Telecommunications System and Code Division Multiple Access cellular technology.
Nokia - the world's largest mobile phone manufacturer - has unveiled a rash of new models aimed at cracking the market for CDMA (code division multiple access) standard handsets.
The high access speed can be achieved by adding a technology, called high-speed downlink packet access (HSDPA), to the W-CDMA (wideband code division multiple access) system adopted by NTT DoCoMo's current FOMA 3G cell phone service with a maximum access speed of 384 kilobits, the sources said.
The new services cited include Code Division Multiple Access (CDMA) 1xRTT and General Packet Radio Service (GPRS).
2 supplier of mobile phone handsets based on the code division multiple access (CDMA) format in the North American market, Toshiba said.
Code Division Multiple Access (CDMA) digital wireless technology company Qualcomm Inc has launched a number of new products based on its CDMA technology in North America.
The BREW platform enables developers to create applications that operate on all handsets with QUALCOMM Code Division Multiple Access integrated circuits.
has been selected as an equipment provider for code division multiple access (CDMA) wireless service for the cities of Shanghai and Tianjin, and Fujian and Hebei provinces in China, South Korea's Information and Communications Ministry said Thursday.
Hitachi uses the code division multiple access (CDMA) digital wireless technology for its mobile phones.
GPRS (general packet radio service) is the 2.5 standard accepted throughout Europe, while its counterpart, CDMA (code division multiple access, a technology that allows multiple radio frequencies to be used simultaneously), has made inroads in North America and Asia.

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