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Cyclic Prefix (CP)
Cyclic Prefix (CP)Cyclic prefix (CP) mitigates multipath fading and inter-symbol interference (ISI) at the price of increasing bandwidth.Delay spread exceeds symbol time. ISI is the result.Separate the symbols in time by adding a gap.Transmission must be continuous. To “fill” the gap, append data from the end of the symbolto the beginning of the symbol.CP allows the system to ignore the initial
