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Table 3 Complexity analysis for the power allocation algorithms

From: DF-based sum-rate optimization for multicarrier multiple access relay channel

  S1: OFDMA S2: OFDM
  (Algorithms 2 and 4, [ 10 ]) Algorithm IP
Average number of 13.64 3.24
iterations needed to   
converge   
Average run time needed to converge (seconds) 0.47 175.6
Average sum-rate (bits per two-slots) 861.5 1,335.4
Power allocation Separate Joint
optimization