Aikaviiveguardintervalit
Aikaviiveguardintervalit is a Finnish term that translates to "time difference guard interval" in English. It is a technical concept used in telecommunications, particularly in the context of orthogonal frequency-division multiplexing (OFDM) systems. The guard interval is a short period of time inserted between transmitted symbols in an OFDM signal. Its primary purpose is to mitigate the effects of inter-symbol interference (ISI), which can occur due to multipath propagation and timing differences between the receiver and transmitter.
In an OFDM system, data is transmitted over a number of closely spaced subcarriers. Each subcarrier carries
The guard interval acts as a buffer. By adding a period of silence or a cyclic prefix