Help me for more understand

[fm_com_28]

Can any one help me to understand the difference between the following terms in wireless communication:
1- Inter Symbol Interference(ISI).
2- Fading.
3- Doppler Shift.

Thanks in advance

 

[alexandr22061986]

ISI-this is a distortion of symbols due to multipath propagation or narrow bandwith and other factors when take place a superposition of two symbols that are transmitting at different time.
Fading-this is a vibration of signal level due to superposition of many signals from variable direction.
Doppler shift this is a change of frequency of transmitting signal due to movements of transmitter and reciever related to each other and depending on direction of movements.

 

[krustik]

There is quite good information about that in wikipedia try to look there.