Question

Which among the following are problems of transmitter detection?

a.

Secondary user uncertainty and xG base station uncertainty

b.

xG base station uncertainty and primary base station uncertainty

c.

Receiver uncertainty and shadowing uncertainty

d.

Transmitter uncertainty and receiver uncertainty

Posted under Cognitive Radio

Answer: (d).Transmitter uncertainty and receiver uncertainty Explanation:When the xG user communication range does not include the transmitter, interference is unavoidable as receiver information is unavailable. This is known as receiver uncertainty. In certain situations, the xG user has a good line of sight with the receiver but is unaware, this is known as shadowing uncertainty.

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Q. Which among the following are problems of transmitter detection?

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