Difference between dsss and cdma

1. What is the difference between DSSS and CDMA?
2. Does CDMA use DSSS?
3. How DSSS does work in CDMA technology?
4. What is the difference between DSSS and FHSS?

What is the difference between DSSS and CDMA?

Direct sequence spread spectrum (DSSS) transmission employs a chipping code to “spread” the transmission over a wider frequency band than it would normally occupy. DSSS is a form of CDMA (see Chapter 4). But instead of a pseudorandom binary sequence (PRBS), an 11-bit Barker code is used as the spreading sequence.

Does CDMA use DSSS?

CDMA uses a Direct Sequence Spread Spectrum (DSSS) property where the transmitter and the receiver must use the same spreading code to transmit data.

How DSSS does work in CDMA technology?

Our method uses DS-CDMA based on direct-sequence spread spectrum (DSSS). The method is physical layer and a multiple-access technique (i.e., the code division multiple channel access technique) to divide the channel into subchannels, and transmits data through these subchannels.

What is the difference between DSSS and FHSS?

The DSSS method of modulation has a higher rate of transmission than the FHSS method. The implementation of DSSS at radio frequencies with a high transmission rate costs less than implementing FHSS. At a given transmitting power, FHSS offers higher power spectral density than DSSS.