COMPUTER FUNDAMENTALS

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COMPUTER NETWORKS AND COMMUNICATIONS

WIRELESS COMMUNICATION TECHNOLOGIES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Propagation model that characterize rapid fluctuation is called ____
A
Large scale propagation model
B
Small scale propagation model
C
Fading model
D
Okumura model
Explanation: 

Detailed explanation-1: -Explanation: Small scale propagation model is also called fading model. Fading model characterize the rapid fluctuations of the received signal strength over very short distance of a few wavelengths or short time duration.

Detailed explanation-2: -that characterize the rapid fluctuations of the received signal strength over very short travel distances (a few wavelengths) or short time durations (on the order of seconds) are called small-scale or fading models.

Detailed explanation-3: -The free space propagation model is used to predict received signal strength, when unobstructed line-of-sight path between transmitter & receiver.

Detailed explanation-4: -Physical models. Physical models of path loss make use of physical radio waves principles such as free space transmission, reflection or diffraction. Empirical models.

Detailed explanation-5: -Line of sight (LOS) propagation. Ground wave propagation. Sky wave propagation.

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