Question

what is intersymbol interference

Answer 1

The symbol is therefore still arriving at thereceiver when the initial energy of the nextsymbol arrives. The energy therefore createsambiguity in the demodulation of the newsymbol. This process is known as inter-symbolinterference (ISI).

Answer 2

Intersymbol interference (ISI) is a form of distortion of a signal in which one symbol interferes with subsequent symbols. This is an unwanted phenomenon as the previous symbols have similar effect as noise, thus making the communication less reliable