How are CDMA codes distributed?

1. How are CDMA codes generated?
2. What is spreading code in CDMA?
3. What is CDMA code division multiple access and how it works?
4. What code does CDMA use to encode individual cell phone conversations?

How are CDMA codes generated?

In Direct-Sequence CDMA, the user signal is multiplied by a pseudo-noise code sequence of high bandwidth. This code sequence is also called the chip sequence. The resulting coded signal is transmitted over the radio channel. Figure: User signal and code are multiplied to generate the coded transmit signal.

What is spreading code in CDMA?

CDMA (Code Division Multiple Access) is a communication technique that allows multiple users to communicate simultaneously over one frequency. This is achieved through the use of spreading codes, whereby a single data bit is "spread" over a longer sequence of transmitted bits.

What is CDMA code division multiple access and how it works?

CDMA cellular systems use a unique code to encode every call's data and then transmit all those calls at once. On the other end, the receivers divide the combined signal into their individual calls before channeling them to the intended recipient.

What code does CDMA use to encode individual cell phone conversations?

CDMA does not assign a specific frequency for each user placing or receiving a call. Individual conversations are encoded with a pseudo-random digital sequence scheme.