Howtosignalprocessing
What is DSSS in wireless network?
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.
How DSSS is useful in WLAN?
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 CDMA and DSSS?
Using CDMA, data is transmitted in the form of noise, making it difficult to jam and also to decipher without the appropriate transmission codes. CDMA uses a Direct Sequence Spread Spectrum (DSSS) property where the transmitter and the receiver must use the same spreading code to transmit data.
