, . . 2 .
2.
Ethernet 10Base2 | 10 / | , , -, | , | |
Ethernet 10BaseT | 10 / | , | , , () | , |
Fast Ethernet 1 | 100 / | , | , , () | |
Fast Ethernet 2 | 100 / | - | , , | () |
Gigabit Ethernet | 1 / | - | , | |
Radio Ethernet | 54 / | , () | ||
v.34 | 33,6 / | - | , | |
v.90 | 56,4 / | - | , | |
xDSL | 22 / | - | , |
1 ;
2 .
4.2. i t.i (. 3) t, , , .
3. ,
, . . | |||
10-60 1 | |||
120-360 | |||
5-30 1 . 10-120 1 | |||
1-20 1 | |||
10-300 1 ( 14-100 /) | |||
5-30 1 | |||
60-480 1 | . | . | |
10-120 1 | - | ||
0,5-2 1 | |||
5-20 1 | - | ||
1-5 1 | |||
(IP-) | 10-60 1 ( 33-64 /) | ||
20-40 1 ( 0,1-1 /) | |||
15-20 1 + 2-5 1 |
|
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Σ .. Σ . , k.. = (0,050,07)n, n , k = (1,22,0) .
Σ , k. = Σ / (0,30,6). , , (.4.1.) .
. . , .
150-300 .
, .
4.3. . , , .
4.4. : , , , .. , 1 2.
, , , , .
4.5. . . , (). AP (Access Point, , -).
, .
15-20%. .
4.6. , .
. . . .
|
|
4.7. , , P. .
( ) t0 t :
k. = (1/t 1/t0) t0.
Δn = k. n0, n0 , . :
Δ = Δn.,
.
:
= P / (Δ ), .
, . 5-7 - .
. :
= S + ;
, , , .
S = + ;
, . , , :
= 0 / n,
0 , , n = n0 + Δn , . :
= (P. P.) / ,
P. , 10% , .
, (, ..) , :
Δ = ѷn 0n0 .
Δ / 0 %. , .