- :
:
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, ; ℓ ; 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) |