Define dsss and explain how it achieves bandwidth spreading

1. How does DSSS achieve bandwidth spreading?
2. How can spreading be achieved in DSSS?
3. What is meant by DSSS?
4. What is a spread spectrum technique explain in detail DSSS?

How does DSSS achieve bandwidth spreading?

Direct Sequence Spread Spectrum (DSSS)

DSSS accomplishes its frequency spreading by transforming each bit into a distinct, longer sequence. For example, a single '1' bit might become a particular 11-bit sequence (00010011100).

How can spreading be achieved in DSSS?

The spreading code can be transmitted in multiple ways like Binary Phase Shift Keying (BPSK), Quadrature Phase Shift Keying (QPSK), or more complex modulation schemes like Quadrature Amplitude Modulation (QAM).

What is meant by DSSS?

Direct-Sequence Spread Spectrum (DSSS) is a transmission technology used in WLAN (wireless LAN) transmissions where a data signal at the sending station is combined with a higher data-rate bit sequence, or chipping code, that divides the user data according to a spreading ratio.

What is a spread spectrum technique explain in detail DSSS?

Spread Spectrum refers to a system originally developed for military applications, to provide secure communications by spreading the signal over a large frequency band. Figure 1 represents a narrow band signal in the frequency domain. These narrowband signals are easily jammed by any other signal in the same band.