MIMO Transceiver based on Software Defined Radio

6th Annual 2018 International Conference on Geo-Spatial Knowledge and Intelligence

Quan, Daying^1 ; Kong, Weitai^1 ; Jin, Xiaoping^1

Key Laboratory of Electromagnetic Wave Information Technology and Metrology of Zhejiang Province, College of Information Engineering, China Jiliang University, Hangzhou

310018, China^1

关键词: Calibration schemes;    Digital beam forming;    Digital signal processing systems;    MIMO communication;    Multiple input multiple output transceivers;    Phase consistencies;    Radio frequencies;    Software-defined radios;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/234/1/012095/pdf
DOI  :  10.1088/1755-1315/234/1/012095

来源: IOP

【 摘 要 】

Amplitude-phase consistency of multiple input multiple output (MIMO) transceivers has a significant impact on the performance of digital beamforming algorithms and MIMO communication algorithms. Based on the concept of software defined radio (SDR), architecture of a MIMO transceiver with a amplitude-phase consistency calibration scheme was designed. By looping the output signals into input channels, amplitude-phase consistency of the output or input channels can be measured, thus the channel calibration was performed in the digital signal processing. Based on the designed architecture, a MIMO transceiver prototype was implemented by adopting SDR radio frequency (RF) agile transceivers and a digital signal processing system on chip (SOC), with software running on it also implemented. Experiments show that the MIMO transceiver achieves high amplitude-phase consistency performance after calibration, and has the characteristics of high integration, miniaturization and high flexibility.