Information Technology Reference
In-Depth Information
Fig. 4.2
A square area of a
length of 500 m with 8
scattered white-space users
{1,2,5}
{1,3,4}
400m
U
s
e
r
7
U
e
r
8
{1,4,5}
300m
{1,3,5}
User 5
User 6
200m
{1,2,3}
{1,2,4}
User 3
User 4
{2,3,4}
{1,3,4}
100m
U
r
1
U
e
r
2
100m
200m
300m
400m
Fig. 4.3
The convergent
potential value
ʦ
with
different parameters
ʸ
−0.5
x 10
−7
*
Maximum Potential Value
ʦ
−1
−1.5
−2
−2.5
−3
0.1
0.5
1.0
5.0
10.0
15.0
(x10
6
)
Parameter
ʸ
Fig. 4.4
Dynamics of users'
time average interference
when
ʸ
−55
10
6
=
−60
User 5
−65
User 7
User 8
User 4
−70
User 2
User 3
User 1
−75
−80
User 6
−85
0
500
1000
1500
2000
Iterations
