SDR_Matlab_LTE
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:satellite: Using Software Designed Radio to transmit LTE downlink signals at 2.4 GHz
SDR_Matlab_LTE
This simple OFDM demo is based on LTE downlink format for testing SDR hardware.
Using Software Designed Radio (SDR) to transmit OFDM signals at 2.4 GHz.
Transmitter and Receiver hardware : Zedboard (Xilinx Zynq®-7000) + AD9361 (Analog Device-FMCOMMS3)
Software needed :
- Matlab (R2018a version in this example)
- Libiio Library
- Zynq Linux Image (2015_R2-2016_07_26 version in this example)
Code Structure :
Please open Matlab windows to run
-
Main_self.m
for one transceiver -
Main_TwoBoard.m
for transmitter and receiver
GUI_RX
Video Demo : https://youtu.be/jywNhMAHi7Y
TX RX Hardware Parameters
Center Frequency | 2.4 GHz |
---|---|
Bandwidth | 10 MHz |
Sampling Rate | 15.36 MS/s |
Mapping | 64 QAM |
FFT Size | 1024 |
Cyclic Prefix Length | 80 (symbol#0), 72(symbol#1~6) |
Resource Block | 50 |
Samples Per Frame | 307200 |
PC Host IP address | 192.168.3.1 |
TX IP address | 192.168.3.6 |
RX IP address | 192.168.3.7 |
The way to change Hardware IP / Mac address
Edit /etc/init.d/rc.local
file in Linux OS
## Change MAC address
sudo ifconfig eth0 down
sudo ifconfig eth0 hw ether 00:0A:35:00:01:23
sudo ifconfig eth0 up
Then, use router DHCP hand setting mode to distribute network configuration parameters :
Hardware shut down process
To shut down the hardware properly, execute the commands below.
Enter Linux by ssh :
ssh [email protected]
Default password :
analog
Shutdown command :
sudo shutdown -h now