:
- ;
- ;
- .
1. (α ) (α ), ..
α=α + α (2.7)
1) α α :
α = α + α (2.8)
α , /;
α , /;
α , /, :
(2.9)
堠 n 1 (1,4464);
λ , (1310 );
tg δ , (210-12).
α , /, :
(2.10)
堠 n 1 (1,4464);
λ , (1310 );
k (1,3810-23 /);
(1500 );
β ( 8,110-11 2/).
ν4. .
(2.7):
α =0,603+0,022=0,625 /
2) 7 :
(2.11)
α1 ;
α2 ;
α3 ;
α4 ;
α5 ;
α6 - ;
α7 ;
α 0,05 /.
(2.6):
α= 0,625+0,05=0,675/
2. . τ , /, () .
(2.12)
, .
, .
.
|
|
, .
τ , /:
(2.13)
D(λ) , /();
Δ λ , (1 ).
(2.14)
S 0 , , /(2) (0,014 /(2));
λ , (1310 );
λ , (800,475 ).
3. , . , , .
(2.15)
W , ;
τ , /.
.. 223 - .
3.4
: , % Triple Play, . : .
64% .
:
.
3.5
, , , . :
(2.16)
;
N ;
S .
(2.17)
, .
1:32, .. 32 :
154 5 - (532=160 , 6 );
4
OLT , ONT. GPON- 32 .
PON , , . , - . , . OLT , . PON- SC/APC . OLT. , - . .
|
|
2.4
UTSTARCOM | Zyxel | ||
GPON LTE-8ST | BBS 1000+ | OLT-1308H | |
, | 70 | 70 | 100 |
8 | 8 | 80 | |
SC/APC, SC/UPC | SC/APC, SC/UPC | SC/APC, SC/UPC | |
, | 20 | 10 | 20 |
1:64 | 1:64 | 1:64 | |
, | 28 | 29 | 28 |
, | -5+40 | +5+40 | -5+45 |
LTE-8ST . Ethernet Gigabit uplink , 8 GPON. 64- , DBA (dynamic bandwidth allocation) 1/.
:
- DBA;
- ;
- ONT, ONT;
- VLAN ( VLAN 0-4094);
- -, 16 000 ;