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EURASIP Journal on Wireless Communications and Networking
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Table 3 Security gap performances with systematic LDPC, perfect scrambled LDPC, LDPC-FF serially concatenated (SC) and LDPC-FF JID (opt./fix.) over the AWGN channel
From:
Pre-coded LDPC coding for physical layer security
Code
S
N
R
E
,
m
a
x
[
d
B
]
S
N
R
B
,
m
i
n
[
d
B
]
S
g
[dB]
Syst.
−11.87
2.835
14.705
Perf. scramb.
0.685
3.49
2.805
SC
0.67
3.285
2.615
JID (opt.)
0.72
2.98
2.26
JID (fix.)
0.62
2.99
2.37
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