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Table 1 Comparison of SDGN/SIGN models at a BER of 10 -3 for the uncoded system

From: Importance of noise models in FSO communications

   

Values

   

Without atmospheric turbulence effect (SI = 0)

 

λ (dB)

0

2

4

6

8

10

SIGN model SNR (dB)

20.50

18.50

16.50

14.56

12.75

11.0

SDGN model SNR (dB)

18.0

16.25

14.50

13.0

11.45

10.0

Gain (dB)

2.5

2.25

2.0

1.56

1.35

1.0

With atmospheric turbulence effect (SI = 1)

 

λ (dB)

0

2

4

6

8

10

SIGN model SNR (dB)

30.0

28.25

26.15

24.50

22.15

20.0

SDGN model SNR (dB)

24.0

22.75

21.15

20.50

18.75

17.0

Gain (dB)

6.0

5.50

5.0

4.0

3.40

3.0