I didn't find a suitable tag for this, but figured it would fit under "Frequency spectrum".

Which of the Spread-spectrum systems listed here are most resistant to multipath fading? Please, briefly tell me why?

The Wikipedia article above lists these (or a combination of at least 2?):

FHSS: Frequency-hopping spread spectrum.
DSSS: Direct-sequence spread spectrum.
THSS: Time-hopping spread spectrum.
CSS: Chirp spread spectrum.

Are there other distinct techniques the article doesn't list?


  • 6
    $\begingroup$ This is way too broad a question. Multipath fading comes in various forms, the fading parameters and the system parameters interact in various ways, and the question "Which is best against multipath?" does not necessarily have a unique answer. As in so many other things, it depends. $\endgroup$ Feb 17, 2012 at 2:01

1 Answer 1


FHSS is hopping between the carrier frequencies. Therefore, if a carrier is in the deep fade, it is probable that the others are not (assuming that the frequency hops independently experience the fading effect). If you are using a strong coding technique (such as Turbo, LDPC), the fast fading effect brings an enormous amount of diversity gain!


Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.