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RAKE receiver is used for _______ technique.

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RAKE receiver is used for _______ technique.

(a) CDMA

(b) TDMA

(c) FDMA

(d) OFDM

This question was addressed to me in unit test.

This interesting question is from Rake Receiver in division Equalization, Diversity and Channel Coding of Wireless/Mobile

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The correct answer is (a) CDMA

The best I can explain: RAKE receiver is essentially a diversity receiver which is used specifically for CDMA. It uses the fact that the multipath components are practically uncorrelated from one another when their relative propagation delays exceed a chip period.

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