Disadvantages of CDM
- As the number of users increases, the overall service quality will decrease.
- It needs time synchronization.
- In CDM, the transmitted bandwidth of each user is increased than the digital data speed of the source.
- The data transfer rate is low.
- CDM is complex mechanism.
Code Division Multiplexing
Multiplexing is a method that can be used to send multiple analog or digital signals over communication channels such as radio waves or fiber optic cables and convert them into a single signal. When the destination is reached, the signal is demultiplexed. The main purpose of using this method is to share limited resources. A real-world example of multiplexing is in the telecommunications industry, where multiple calls can be made using a single connection.