CREST Practitioner Security Analyst (CPSA) Practice

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What is the full form of CDMA in telecommunications?

Common Division Multiple Access
Code Division Multiple Access
Carrier Division Multiple Access
Code Data Multiple Access

The correct answer is: Code Division Multiple Access

The term CDMA in telecommunications stands for Code Division Multiple Access. This technology is a channel access method used by various radio communication technologies. It allows multiple signals to occupy a single transmission channel, optimizing the use of available bandwidth. In CDMA, each user is assigned a unique code that modulates their signal. This enables multiple users to share the same frequency band without interfering with each other's transmissions. The code used for each user ensures that their communication can be separated and decoded at the receiver's end, even when all users transmit simultaneously. This efficient use of spectrum and ability to handle many simultaneous calls makes CDMA a popular choice in wireless communication systems, particularly in mobile networks. Understanding the principles of CDMA is crucial for grasping how modern digital cellular systems operate, as well as for recognizing its significance in the evolution of telecommunication technologies.