Final report on link level and system level channel models - Winner

WINNER D5.4 v. 1.4
0.5
Tables of Section Error! Reference source not found.. Note that ( 0)
0.5
5
R ( 0) = EΛ
0.
T
from the eigen-decomposition R( 0 ) = EΛE
of R ( 0)
.
R shall be obtained as
5) Based on the generated large-scale parameters:
a. Generate the delays, azimuth AoD and azimuth AoA of each ZDSC through random
variable generators of the corresponding probability density functions of the selected
scenario. Generate elevation AoD and AoA for indoor Scenarios.
b. Order the delays and normalize them to the smallest delay.
h
c. Calculate the average power of each ZDSC within the channel segment as described in
Section 3.1.2. Assign the power of each ray within the ZDSC as P n
/ M , where M is
the number of rays within ZDSC of a specific scenario, which is fixed to 10 rays.
d. AoA and AoD are sorted in ascending order of absolute values. Shortest delays are are
assosiated to AoA and AoD with smallest absolute values. Respectively, longest delay
is assosiated to AoA and AoD with largest absolute value.
e. Assign angle offset of rays in departure and arrival from predefined set of offset angles
of the selected scenario and assign random phases from U(0 o ,360 o ) to the 10 rays of the
ZDSC. Table 3.10 shows how to obtain offset angles of rays as a function of anglespreads.
f. Randomly couple departure rays to arrival rays.
g. Determine the AoD and AoA for all rays within each ZDSC with respect to the
broadside of transmitter and receiver, respectively.
h. Determine the antenna gain at transmitter G ( AoD ) and receiver ( )
where n is the nth ZDSC and m is the mth ray within the nth cluster.
i. Apply path loss and shadowing to each ray within all ZDSCs.
t
n
G AoA ,
j. With the knowledge of MS velocity vector, fast fading of each ZDSC can be calculated
for every channel segment, while the bulk parameters and MS locations remained fixed.
k. For linear array configuration, the channel coefficient h ( t)
u , s,
n
due to the nth ZDSC
for each antenna pair, element s from transmitter and element u from receiver is given
by:
j⎡
⎣kd
s sin( φm, n ) +Φm,
n⎤
⎦
Gt( φmn
.
) e
⋅
M ⎜
⎟
jkdu
sin( ϕ m,
n)
usn , ,
() =
nσ
SF∑ ⎜
r( ϕmn
,
) ⋅ ⎟ (3.26)
m = 1 ⎜
⎟
jk v cos( ϕ −θ
) t
h t P G e
⎛
⎜
⎝
e
Assuming that cluster n=1 is the one with normalized delay τ 1 =0 (i.e. the cluster with the
lowest delay of all), an optional LOS component may be taken into account as follows:
LOS
u , s,
n
( t)
=
using
where
1
h
K + 1
m,
n
v
⎞
⎟
⎠
[ kd sin( θ ) +Φ ]
j
⎛
s BS LOS
G
⎞
⎜
s(
θBS
) e
⋅
σ
⎟
SFK
j(
kdu
sin( θ MS ) +Φ LOS )
+ δ ( n −1)
⋅ ⎜ Gu
( θMS
e
⋅⎟
(3.27)
K + 1
⎜
jk v cos( θ MS −θ
v ) t
⎟
⎝
e
⎠
u, s,
n
)
⎧1 for n=
0
δ ( n)
= ⎨
⎩ 0 else
φ
n,m is the azimuth angle of departure of mth ray within the nth ZDSC.
ϕ
n,m is the azimuth angle of arrival of mth ray within the nth ZDSC.
M is the number of rays within ZDSC, which is 10.
G ( φ
,m
) is the antenna gain of transmitter (BS) for the mth ray within the nth ZDSC.
t
n
r
n
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