Path loss meaning

1. What is meant by path loss?
2. What is path loss formula?
3. What are the reasons for path loss?
4. What is path loss in LTE?

What is meant by path loss?

Path loss, which measures the loss of energy of a wave propagating between the transmitter and the receiver, is the main parameter in the design of wireless networks.

What is path loss formula?

The path loss is expressed mathematically as. PL(dB)=20log10(4πdλ)−−−(1) d is the distance between the transmitter and receiver and λ is the wavelength of the signal. As said earlier, the received power level depends on the path loss.

What are the reasons for path loss?

Path loss normally includes propagation losses caused by the natural expansion of the radio wave front in free space (which usually takes the shape of an ever-increasing sphere), absorption losses (sometimes called penetration losses), when the signal passes through media not transparent to electromagnetic waves, ...

What is path loss in LTE?

The path loss is defined as the ratio of the transmit power to the receive power. In a link budget, this refers to the largest transmit power that the transmitter can send and the smallest receive power at which the receiver can recover the original information.