Alias
Direct Sequence Spread Spectrum
The Direct Sequence Spread Spectrum (DSSS) modulation scheme is a method used in wireless communication to reduce interference and noise. It works by spreading the signal across a wider frequency band than the original signal bandwidth. This is achieved by multiplying the data bits with a faster pseudo-random sequence of bits known as a chipping code. The resulting signal appears as background noise, making it less susceptible to interference and more secure. The receiver, knowing the chipping code, can decode the original data from the spread signal. DSSS is commonly used in technologies such as Wi-Fi and GPS.
