Howtosignalprocessing
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 DSSS used for?
DSSS is a spread spectrum modulation technique used for digital signal transmission over airwaves. It was originally developed for military use, and employed difficult-to-detect wideband signals to resist jamming attempts. It is also being developed for commercial purposes in local and wireless networks.
What is DSSS and FHSS?
Higher signal transmission rate (up to 11 Mbps) FHSS is a robust spread spectrum technique that is suitable to employ in harsh environments. DSSS is a sensitive spread spectrum technique that is influenced by harsh environmental conditions. FHSS is suitable for single point as well as multipoint communications.
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.
