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Table 1 The complexity of the proposed algorithms

From: Optimal linear precoding for opportunistic spectrum sharing under arbitrary input distributions assumption

Case

Iteration

Computational

 

complexity

complexity

Spectrum efficiency

O(2n 2 ln(L R/ϵ 1))

O(2s n 2 ln(L R/ϵ 1))

Energy efficiency

O ( 2 n 2 ln ( LR / ε 1 ) × log 2 ( P t / ε 2 ) )

O ( 2 s n 2 ln ( LR / ε 1 ) × log 2 ( P t / ε 2 ) )