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

WINNER D5.4 v. 1.4
PathLossModel
AnsiC_core
LookUpTable
RandomSeed
yes/no (if ‘no’ shadow fading is still computed and
returned in the second output argument, but not
multiplied with the channel matrices). Note that if
both path loss and shadowing are switched off the
average power of the channel matrix elements will
be one (with azimuthally uniform unit gain
antennas).
The name of the path-loss function. Function ‘pathloss’
implements the default WIM path-loss model.
If the default is used, centre-frequency is taken from
the parameter CenterFrequency. One can define
his/her own path-loss function. For syntax, see
PATHLOSS.
Use optimized computation yes/no. With ‘yes’
faster C-function is used instead of m-function.
Note the C-function SCM_MEX_CORE.C must be
compiled before usage. For more information, see
SCM_MEX_CORE.M.
If optimized computation is used, complex
exponents can be either taken from a look-up table
to speed up computation or calculated explicitly.
This parameter defines the table size, if 0 table is
not used, if –1 default table size 2 14 =16384 is used.
The size of the table must be a power-of-two. If
AnsiC_core = ‘no’ this parameter is ignored.
Random seed for fully repeatable channel
generation (if empty, seed is generated randomly).
Note that even if RandomSeed is the fixed, two
channel realizations may still not be the same
between different MATLAB versions.
‘path-loss’ -
‘no’ -
0 integer
integer
Table 6.3: Link-dependent parameters. All the parameters are vectors of length K, where K is the
number of links. The values are randomly generated; they are not based on any specific network
geometry or user behaviour model.
Parameter name
6.2.1.1 Definition
Default value
MsBsDistance Distance between BS and MS 1965*RAND(1,K) + 35 m
ThetaBs θ BS (see Figure 6.2) 360* RAND(1,K) deg
ThetaMs θ MS (see Figure 6.2) 360* RAND(1,K) deg
MsVelocity MS velocity 10 m/s
MsDirection θ v (see Figure 6.2) 360* RAND(1,K) deg
BsNumber
StreetWidth
Dist2
MsNumber is a positive integer defining the index
number of MS for each link. This parameter is used in
generation of inter-site correlated shadow fading
values; shadow fading is correlated for links between a
single MS and multiple BSs. There is no correlation in
shadow fading between different MSs. Examples: The
default value is the case where all links in a call to the
SCM function correspond to different MSs. Setting
MsNumber=ones(1,K) corresponds to the case where
the links from a single MS to K different BSs are
simulated.
Street width is utilized only with path-loss model in
[D5.3, sec 2.3.1.13.2]
This is utilized only with path-loss model in [D5.3, sec
2.3.1.13.2]. Parameter is defined in Figure 2-37 in
[D5.3] and generated randomly if empty.
Unit
[1:K] -
20 m
[empty matrix] 1xK
m
Table 6.4: Antenna parameters. The following parameters characterize the antennas. Currently
only linear uniform arrays with dual-polarized elements are supported. The antenna patterns do
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