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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.
CDMA2000 1X (IS-2000), also known as 1x and 1xRTT, is the core CDMA2000 wireless air interface standard.The designation "1x", meaning 1 times radio transmission technology, indicates the same radio frequency (RF) bandwidth as IS-95: a duplex pair of 1.25 MHz radio channels. 1xRTT almost doubles the capacity of IS-95 by adding 64 more traffic channels to the forward link, orthogonal to (in ...
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.
CDMA2000 1xRTT, EV-DO Rev. A 800 Nov 2008: Oct 2017 [79] [80] [81] Provider formerly branded as PCCW. CDMA service suspended starting from 31 October 2017. BSNL India: CDMA2000 1xRTT, EV-DO Rev. A 800 Mar 2005: Mar 2016 [82] [83] [84] MTS India: CDMA2000 1xRTT, EV-DO Rev. B 800 Sep 2003: Nov 2017 [85] [86] [87] RCOM India: CDMA2000 1xRTT, EV-DO ...
CDMA allows multiple people to speak at the same time over the same frequency, allowing more conversations to be transmitted over the same amount of spectrum; this is one reason why CDMA eventually became the most widely adopted channel access method in the wireless industry.
Category for various information associated with Code Division Multiple Access (CDMA) technologies. Pages in category "Code division multiple access" The following 23 pages are in this category, out of 23 total.
EV-DO is an evolution of the CDMA2000 standard which supports high data rates and can be deployed alongside a wireless carrier's voice services. It uses advanced multiplexing techniques including code-division multiple access (CDMA) as well as time-division multiplexing (TDM) to maximize throughput.
CDG – CDMA Development Group CDMA – Code Division Multiple Access CDR – Call Detail Record ... IS-2000 – Superseded by TIA-2000. IS-41 – Superseded by TIA-41.