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EURASIP Journal on Wireless Communications and Networking
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Table 2 The types and numbers of operations needed to implement the perfect scrambling (randomly generated), FF soft decoding (BCJR), and FF hard decoding (as perfect scrambling)
From:
Pre-coded LDPC coding for physical layer security
Operations
Perfect scrambling
FF soft
FF hard decoding
(random matrix)
(BCJR)
(perfect scrambling)
Addition
n
(
n
−1)
2(2
t
−1)
n
n
−1
Multiplication
n
2
8
t
n
Division
n
Logarithm
n
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