Explain the effect of cell breathing, Computer Engineering

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Problem :

(a) State and describe the transmission ranges associated with wireless transmission. Illustrate your answer with a diagram.

(b) Sketch a graph representing how a wireless signal attenuates with distance travelled.

(d) Spreading the spectrum for signal transmission helps alleviate the narrow band interference problem. What is narrow band interference? State and describe different techniques that can be used to spread the spectrum.

(e) How would you modify the binary phase shift keying modulation technique to improve efficiency?

(f) Explain techniques used in cellular systems to improve the reuse of frequency channels. Illustrate your answer.

(g) Explain the effect known as cell breathing.

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