2×2 MIMO Testbed for Dual 2.4GHz/5GHz Band

The paper describes a Multiple Input Multiple Output communication testbed for operation in a dual 2.4 GHz/5 GHz band, which is under development at the University of Queensland. This advanced testing equipment makes use of Field Programmable Gate Array technology for fast processing of the baseband signals. Its RF modules include commercially available RF transceiver chips and in-house developed antennas. Using a 100 Mbit Ethernet network connection and a Web browser, the estimated channel matrices and received and decoded signal constellations can be visualized in quasi realtime on a personal computer.