Real time video transceiver using SDR testbed with directional antennas

In this paper, we propose a real-time transmission and reception scheme for high-quality video using the directional antenna with the smart beamforming. We implemented a Software Defined Radio (SDR) testbed based on Universal Software Radio Peripheral (USRP) and LabVIEW, which can provide a cost effective solution for prototyping wireless communication systems. First, the major challenge for the streaming high quality video is high data rate. In our proposed system, the high data rate up to 56 Mbps is obtained with the directional beamforming transmission/reception. Second, packet efficiency, i.e., successful packet reception of the system should be high. In our proposed system, the packet efficiency up to 98.56% is achieved of by our developed algorithm. Third, the frame rate of the video transmission, which should be high, is attained at 30 fps in our implementation. The high power at the receiver is achieved by the use of the directional antenna. The experimental results show that the Inter Symbol Interference (ISI) is reduced to the great extent. Furthermore, the proposed solution is investigated by using high-order modulation techniques like 64-QAM and 256-QAM.