COMPUTER NETWORKS AND COMMUNICATIONS
WIRELESS COMMUNICATION TECHNOLOGIES
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
false
|
|
|
true
|
|
|
Either A or B
|
|
|
None of the above
|
Detailed explanation-1: -Explanation: Free space propagation model predicts the received signal strength when there is an unobstructed line of sight path between transmitter and receiver. It assumes the ideal propagation condition that the environment is empty between the transmitter and receiver.
Detailed explanation-2: -The free space propagation model is used to predict received signal strength when the transmitter and receiver have a clear, unobstructed line-of-sight path between them Friis 1946.
Detailed explanation-3: -Free space propagation models have no enforced frequency range, assume line-of-sight (LOS) conditions, and disregard terrain, the curvature of the Earth, and other obstacles. FreeSpace objects have no properties.
Detailed explanation-4: -The free space propagation model is used to predict received signal strength, when unobstructed line-of-sight path between transmitter & receiver.
Detailed explanation-5: -In wireless communication, the free space propagation model is used to calculate the Received Power if there is an unobstructed line-of-sight between the transmitter and the receiver. This model is viable as long as the Transmitter-Receiver separation distance is greater than the far-field (Fraunhofer) distance.