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open-sdr / openwifi

open-source IEEE 802.11 WiFi baseband FPGA (chip) design: driver, software
GNU Affero General Public License v3.0
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iperf3 UDP between openwifi (Xilinx ZYNQ ADI AD9361) board and lapttop #353

Open winfelin opened 8 months ago

winfelin commented 8 months ago

We tested the UDP bitrate from the board to the laptop to reach 50Mbps using the command iperf3- c xx.xx.xx.xx - u - b 0. But on the contrary, the UDP bitrate from the laptop to the development board is only 20Mbps, using the command iperf3- c xx.xx.xx.xx - u - b 0- R. In addition, the UDP bitrate between two boards is smaller, only 3Mbps. But if cables are used to connect between boards, UDP bitrate can reach 20Mbs What is the reason for this? Is it the Rx of OpenWiFi that needs to be optimized?

winfelin commented 7 months ago

It seems that the speed of ofdm_rx in openwifi is only half that of ofdm_tx. Why is this? But the bandwidth used by Tx and Rx is 20MHz.