:satellite: Using Software Designed Radio to transmit LTE downlink signals at 2.4 GHz
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)
Please open Matlab windows to run
Main_self.m
for one transceiverMain_TwoBoard.m
for transmitter and receiverVideo Demo : https://youtu.be/jywNhMAHi7Y
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 |
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 :
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