COMPUTER FUNDAMENTALS

Detailed explanation-1: -The large scale fading is used to describe the signal level at the receiver after traveling over a large area (hundreds of wavelengths). Small scale fading is used to describe the signal level at the receiver after encountering obstacles near (several wavelengths to fractions of wavelengths) the receiver.

Detailed explanation-2: -Empirical models are those based on observations and measurements alone. These models are mainly used to predict the path loss, but models that predict rain-fade and multipath have also been pro-posed [4].

Detailed explanation-3: -l As the mobile moves away from the transmitter over. larger distances, the local average received signal will gradually decrease. This is called large-scale path loss.

Detailed explanation-4: -Explanation: I Path loss is defined as difference of effective transmitter power and receiver power. Free-space path loss is the loss in signal strength of an electromagnetic wave that would result from a line-of-sight path through free space, with no obstacles nearby to cause reflection or diffraction.