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____________ is used to prevent deep fade for rapidly varying channel.

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____________ is used to prevent deep fade for rapidly varying channel.

(a) Modulation

(b) Demodulation

(c) Macroscopic diversity technique

(d) Microscopic diversity technique

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

The query is from Diversity Techniques in portion Equalization, Diversity and Channel Coding of Wireless/Mobile

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Right choice is (d) Microscopic diversity technique

Explanation: In order to prevent deep fades from occurring, microscopic diversity techniques can exploit the rapidly changing signal. By selecting the best signal at all times, a receiver can mitigate small scale fading effects.

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