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Table 4 Technical parameters of an arithmetic and logic unit (ALU)

From: Energy-efficient estimation of a MIMO channel

Parameter

Description

Value

f ALU

ALU frequency

20 MHz

V dd

ALU voltage

3 V

I o ( V dd , f ALU )

Average current

6.37 mA

c sum

Adding cost

6 cycles

c prod

Product cost

13 cycles

c div

Division cost

21 cycles