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This article contains terminology related to CDMA International Roaming. To quickly find a term, click on the first letter of the term below: To quickly find a term, click on the first letter of the term below:
CDMA is analogous to the last example where people speaking the same language can understand each other, but other languages are perceived as noise and rejected. Similarly, in radio CDMA, each group of users is given a shared code. Many codes occupy the same channel, but only users associated with a particular code can communicate.
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.
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.
CDMA—Code-division multiple access; CDN—Content delivery network; CDP—Cisco Discovery Protocol; CDP—Continuous data protection; CD-R—CD-Recordable; CD-ROM—CD Read-Only Memory; CD-RW—CD-Rewritable; CDSA—Common Data Security Architecture; CERT—Computer emergency response team; CES—Consumer Electronics Show; CF—Compact Flash
cdmaOne network structure. The IS-95 standards describe an air interface, [1] a set of protocols used between mobile units and the network. IS-95 is widely described as a three-layer stack, where L1 corresponds to the physical layer, L2 refers to the Media Access Control (MAC) and Link-Access Control (LAC) sublayers, and L3 to the call-processing state machine.
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. [9]
Unlike CDMA, which allows for a more dynamic and adaptive use of bandwidth, TDMA's fixed time slot assignment can lead to inefficiencies. In scenarios where user demand fluctuates significantly, the rigid structure of TDMA may result in underutilization of resources, as not all time slots may be filled during periods of low demand.