WCDMA3G_ClassicalChannel
Description: Multipath fading channel of classical Doppler spectrum
Library: 3GPPFDD 10-99, Channel Model
Class: SDFWCDMA3G_ClassicalChannel
Parameters
Name |
Description |
Default |
Sym |
Unit |
Type |
Range |
|---|---|---|---|---|---|---|
SamplingRate |
sampling rate |
3840000 |
|
|
int |
(0, ∞) |
SampleRate |
samples per chip |
4 |
S |
|
int |
[1, 32] |
Dpath2 |
time delay of second tap relative to the first tap |
310n |
|
sec |
real |
(0, ∞) |
Dpath3 |
time delay of third tap relative to the first tap |
710n |
|
sec |
real |
(0, ∞) |
Dpath4 |
time delay of fourth tap relative to the first tap |
1090n |
|
sec |
real |
(0, ∞) |
Dpath5 |
time delay of fifth tap relative to the first tap |
1730n |
|
sec |
real |
(0, ∞) |
Dpath6 |
time delay of sixth tap relative to the first tap |
2510n |
|
sec |
real |
(0, ∞) |
Gpath1_dB |
average power of first tap relative to the strongest tap in dB |
0 |
|
|
real |
(-∞, 0] |
Gpath2_dB |
average power of second tap relative to the strongest tap in dB |
-1.0 |
|
|
real |
(-∞, 0] |
Gpath3_dB |
average power of third tap relative to the strongest tap in dB |
-9.0 |
|
|
real |
(-∞, 0] |
Gpath4_dB |
average power of fourth tap relative to the strongest tap in dB |
-10.0 |
|
|
real |
(-∞, 0] |
Gpath5_dB |
average power of fifth tap relative to the strongest tap in dB |
-15.0 |
|
|
real |
(-∞, 0] |
Gpath6_dB |
average power of sixth tap relative to the strongest tap in dB |
-20.0 |
|
|
real |
(-∞, 0] |
Velocity |
mobile velocity in Km/hour. |
100.0 |
|
|
real |
[0, 5000) |
CarrierFrequency |
carrier frequency |
2.0G |
|
Hz |
real |
(0, ∞) |
Pin Inputs
Pin |
Name |
Description |
Signal Type |
|---|---|---|---|
1 |
Sig |
complex envelope signal |
complex |
Pin Outputs
Pin |
Name |
Description |
Signal Type |
|---|---|---|---|
2 |
PSig |
output signal after passing channel |
complex |
Notes/Equations
- This subnetwork model is used to pass the input signal through multipath Rayleigh fading channel that is based on a tapped-delay line model. The Doppler spectrum is classical. The maximum number of paths is 6. If Gpathi_dB(i=1,2,...6) is set to larger than 0, this tap is ignored. There is no path loss or gain in this model.
Each firing, 1 PSig token is produced for each Sig token consumed. - The schematic for this subnetwork is shown in the following figure.
WCDMA3G_ClassicalChannel Schematic
References
- IS2000.2, "Physical Layer Standard for cdma2000 Spread Spectrum Systems," April 1999.
- TR 101 112 v3.2.0, "Universal Mobile Telecommunications System (UMTS); Selection procedures for the choice of radio transmission technologies of UMTS (UMTS 30.03 Version 3.2.0), ETSI.