.


:




:

































 

 

 

 


- :

:

1. .. . : . 2008. 680 .

2. " ()". : ., 2011.

3. "".

4. " ()". : ., 2011.

:

1. PTS, FEC .

2. : , .

3. SUPER-FEC .

4. BCH .

5. : ͔, .

6. : , .

7. OSNR PLP FEC FEC .

( )

1. Ҳ (.1: .336341; .2, 3, 4). , FEC. PLT PTS FEC: , , . FEC. , . : , , . - (Reed-Solomon)/ RS: , , , RS. BCH (Bous-Choudhury-Hockwinghems): , , .

2. ˲ (.1: .341343; .2, 3, 4). . . - BER. - BER . - BER . - Q: , . - . .

3. ˲ֲ ˲ (.1: .343348; .2, 3, 4). , SUPER-FEC. BCH (Bous-Choudhury-Hockwinghems). BCH (Bous-Choudhury-Hockwinghems). : , , , 16 , .

4. Ҳ ˲ (.1: .349352; .2, 3, 4). : , , BER. OSNR .

5. / 1520 .

:

1. , FEC.

2. , , PLT PTS FEC.

3. FEC.

4. , .

5. , , .

6. - (Reed-Solomon)/ RS: , , , RS.

7. BCH (Bous-Choudhury-Hockwinghems): , , .

8. .

9. .

10. - BER.

11. - BER .

12. - BER .

13. - Q: , .

14. - .

15. .

16. , SUPER-FEC.

17. BCH (Bous-Choudhury-Hockwinghems).

18. BCH (Bous-Choudhury-Hockwinghems).

19. : , , , 16 , .

20. : , , BER.

21. PLP OSNR FEC FEC.

22. (, , , ) : FEC; BER; NZDSF; SF; λ 1+2+3++ N ; λ, f, ; α, /; EDFA; TDFA; YDFA; P H, ; ; OSNR; WDM; DWDM; HDWDM; NWDM; SUPER-FEC; PTS ; PLP; PLT; OADM; ; OB; OLA; OAS; C‑, L‑, UL‑ S‑ ; STM- 16 (64, 256); DCU; DSM; OMX; ODMX; ORR (OLR); DRA; .?

1. ǒ .

2. .

3.

4. ϳ - (1520¢).

 

 

. 1. ITUT

/ ij / ∆λ, ij , / ∆f
  (Original) O - 12601360 / 100 238220 / 18 2
  (Extended) E - 13601460 / 100 220205 / 15 4
  (Shortwavelength) S - 14601530 / 70 205196 / 11 5
  (Conventional) C - 15301570 / 40 196192 / 4 3
  (Longwavelength) L - 15701625 / 55 192185 / 7 6
  (Ultra - Longwavelength) UL - 16251675 / 50 185179 / 6 7

 

 


       
   
 
 

 


 

 


. 2.

/
FEC
  : RS (255, 239) : CSOC (n0/k0 =7/6, J =8)
  : BCH (3860, 3824) : BCH (2040, 1930)
  : RS (1023, 1007) : BCH (2047, 1952)
  ( ) : RS (1901, 1855) : (512, 502) × (510, 500)
  LDP ( )
  FEC BCH
  RS (2720, 2550)

 

 

 


 

 


 

 
 

 


 



<== | ==>
|
:


: 2016-12-18; !; : 225 |


:

:

.
==> ...

780 - | 735 -


© 2015-2024 lektsii.org - -

: 0.013 .