Illustrative scenarios of wireless channels
What is the primary medium through which wireless communication operates?
What happens to the electric field strength as the distance between the transmitting and receiving antennas increases?
What happens when the receiver moves away from the transmitter?
What type of interference occurs at the receiver when there are two different paths taken by the transmitted signal?
If a transmitter sends a sinusoidal signal with a frequency of 1 MHz and the receiver is placed 300 meters away from the transmitter in free space, what will be the time delay for the signal to reach the receiver? (Speed of light = 3×10^8 m/s)
If the initial distance is 100 meters and the velocity of the receiver is 10 m/s (moving away from the transmitter), calculate the distance between the transmitter and the receiver after 5 seconds.
What is the Doppler shift when the receiver is moving towards the source?
In the two-ray model of the wireless channel, with what exponent does the signal power decrease with distance?