Channel sounding technique using MIMO software radio architecture

This paper presents a novel channel sounding system based on MIMO software defined radio architecture. It was developed for the evaluation of the beyond 4 G mobile communication systems operating at 11 GHz in which the multi-link MIMO technology will be adopted. 4Ô4 MIMO channel sounder was developed as the first prototype, and the advantages and issues are discussed based on the several performance tests. As a results, the fundamental performance of the prototype sounder was assessed, hence the validity of proposed channel sounding technique was verified.