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_____ offers fade resistance for slow-moving mobiles.(a) FEC(b) Diversity(c) Frequency hopping(d) InterleavingI had been asked this question in an interview.My question is from Antenna Tradeoffs in portion Technology Tradeoffs in Software Defined Radio of Cognitive Radio

Answer»

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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