What is Frequency-Hopping Spread Spectrum (FHSS)?
Frequency-Hopping Spread-Spectrum (FHSS) is a spread spectrum modulation scheme that uses a narrowband carrier that changes frequency in a pattern known to both the transmitter and receiver. Properly synchronized, they maintain a single logical channel. To an unintended receiver, FHSS appears as short-duration impulse noise. FHSS technology uses bandwidth inefficiently in order to assure high security; therefore, FHSS systems typically have lower throughput speeds than Direct Sequence Spread Spectrum (DSSS) systems. Slower performing WLAN devices (1 Mbps) use FHSS.
