WINNER II pdf - Final Report - Cept

WINNER II D1.1.2 V1.2
d
2
2
BS ,
( ) ( )
i MS
= x
k BS
− x
i MS
+ y
k BS
− y
i MS k
. (5.1)
The LOS direction from BS i to MS k with respect to BS antenna array broad side is (see Figure 5-2)
θ
BSi
, MSk
⎧ ⎛ y
⎪−
arctan⎜
⎪
⎝
x
= ⎨
⎪ ⎛ y
⎜
⎪−
arctan
⎩ ⎝
x
MSk
MSk
MSk
MSk
− y
− x
− y
− x
BSi
BSi
BSi
BSi
⎞
⎟ + 90° − Ω
⎠
⎞
⎟ − 90° − Ω
⎠
The angles and orientations are depicted in the figure below.
BSi
BSi
,
,
when
when
x
x
MSk
MSk
≥ x
< x
BSi
BSi
(5.2)
Ω BSi
θ BS i , MS k
Ω MSk
θ MS , k BS i
Figure 5-2: BS and MS antenna array orientations.
Pairing matrix A is in the example case of Figure 5-2 a 6x3 matrix with values χ n,m ∈ {0,1}. Value 0
stands for link celln to MSm is not modelled and value 1 for link is modelled.
⎡χc1,
⎢
= ⎢
χc2,
⎢ M
⎢
⎣χc6,
ms1
ms1
ms1
χ
χ
χ
c1,
ms2
c2,
ms2
M
c6,
ms2
χ
χ
χ
c1,
ms3
c2,
ms3
M
c6,
ms3
⎤
⎥
⎥
⎥
⎥
⎦
A (5.3)
The pairing matrix can be applied to select which radio links will be generated and which will not.
5.1.2 Multi-cell simulations
5.1.2.1 Single user (Handover)
A handover situation is characterized by a MS moving from the coverage are of one BS to the
coverage area of another BS. Figure 5-3 illustrates this setup.
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