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_____ offers fade resistance for slow-moving mobiles.

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_____ offers fade resistance for slow-moving mobiles.

(a) FEC

(b) Diversity

(c) Frequency hopping

(d) Interleaving

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My question is from Antenna Tradeoffs in portion Technology Tradeoffs in Software Defined Radio of Cognitive Radio

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Correct choice is (c) Frequency hopping

To explain: Frequency hopping can provide fade resistance for slow-moving mobiles. GSM’s frequency hopping plan improves SNR by averaging deep fades.

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