In order to incorporate simultaneous influence of multipath fading
and shadowing, various models have been presented recently in the literature.
It is also shown that the capacity increase of OAM waves is limited by interference incurred by multipath fading
, which is even aggravated with wide beam width antennas.
Thus, the presented simulation results show that DCO-OFDM is more affected by multipath fading
due to the presence of unavoidable clipping noise.
For FSM, as T-R distance increases, the accuracy of distance estimation fluctuates obviously and gradually gets worse since multipath fading
. Compared with FSM, the proposed OFPEDM can significantly mitigate the multipath fading
effect and reduce the negative effect on the accuracy of distance estimation.
Sayeed, ''Exploiting channel diversity in secret key generation from multipath fading
randomness,'' IEEE Trans.
However, multipath fading
channel would seriously impact on modulation classification.
When the altitude of UAV is very low, the scatterers near the ground give strong multipath fading
to the channel.
OFDM enables robust multiple access method to conflict the impairment of wireless channels, particularly of multipath fading
, delay spread and Doppler shifts.
Furthermore, the platform's use of OFDM technology dampens the challenge of multipath fading
and obstructions in the wireless environment.
The mobile radio signal experiences several signal variations and weakens due to multipath fading
effects during transmission of data from source to destination.
In LTE-A, the quality of the received signal depends on macroscopic path loss, shadowing, multipath fading
, interfering signals, and sensitivity of the receiver .