Question

Which of the following is not a property of spread spectrum techniques?

(a) Interference rejection capability

(b) Multipath fading

(c) Frequency planning elimination

(d) Multiple user, multiple access interface

The question was asked in a national level competition.

The above asked question is from Spread Spectrum Modulation Techniques topic in section Modulation Techniques for Mobile Radio of Wireless/Mobile

Answer 1

The correct option is (b) Multipath fading

For explanation: Resistance to multipath fading is one of the fundamental reasons for considering spread spectrum systems for wireless communication. Since spread spectrum signals have uniform energy over a very large bandwidth, at any given time only a small portion of the spectrum will undergo fading.