Question

Which among the following outcome occur on increasing the energy per bit exponentially as per Shannon limit?

a.

Radiated spectral energy increases at the second power of the spectral information density

b.

Radiated spectral energy increases at the third power of the spectral information density

c.

Spectral information density increases at the third power of the radiated spectral energy

d.

Spectral information density increases at the second power of the radiated spectral energy

Posted under Cognitive Radio

Answer: (b).Radiated spectral energy increases at the third power of the spectral information density Explanation:Shannon limit specifies the maximum rate at which communication can be carried out without error in a channel with a given bandwidth. Shannon limit supports a claim that spectrum efficiency of infinite bits per Hertz can be achieved by increasing energy per bit exponentially. This results in the increase of radiated spectral energy at the third power of spectral information density.

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Q. Which among the following outcome occur on increasing the energy per bit exponentially as per Shannon limit?
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