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Which of the following is not a characteristic of Cdma2000?

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Which of the following is not a characteristic of Cdma2000?

(a) Adaptable baseband signalling rates

(b) Adaptable baseband chipping rates

(c) Multicarrier technologies

(d) OFDMA

I had been asked this question during an interview for a job.

This interesting question is from 3G Cdma2000 in division Modern Wireless Communication Systems of Wireless/Mobile

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Correct choice is (d) OFDMA

To explain I would say: Cdma2000 does not use OFDMA technique. OFDMA is used by 4G networks. Cdma2000 uses rapidly adaptable baseband signalling rates and chipping rates for each user. It also provides multi-level keying within same framework.

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