Question

__________ are used to resolve and combine multipath components.

(a) Equalizer

(b) Registers

(c) RAKE receiver

(d) Frequency divider

This question was posed to me by my college professor while I was bunking the class.

I'd like to ask this question from CDMA Digital Cellular Standard (IS-95) topic in section Wireless Systems and Standards of Wireless/Mobile

Answer 1

Right choice is (c) RAKE receiver

Easiest explanation: At both the base station and the subscriber, RAKE receivers are used to resolve and combine multipath components, thereby reducing the degree of fading. A RAKE receiver exploits the multipath time delays in a channel and combines the delayed replicas of transmitted signal.