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Table 3 Receiver system complexity analysis (for one information bit)

From: A new scheme to enhance the performance of permutation index–differential chaos shift keying communications system

Unit DCSK CDSK HE-DCSK TR-DCSK SR-PI-DCSK
Multipliers 1 1 1 0 M/n
Delay 1 1 1 1 L/n
Demodulator 1 1 1 1 M/n
DMU \(^{\mathrm {a}}\) 0 0 0 1 1/n
  1. \(^{\mathrm {a}}\)DMU data mapping unit (including the time reversal unit)