Infrared indoor wireless MIMO communication system using 1.2GHz OOK modulation

The multiple input multiple output (MIMO) systems using serial infrared (SIR), return to zero-inverted (RZI) and on off keying (OOK) modulation were studied. Also, by analyzing experimental results, curve fitting models were established. Three infrared MIMO systems with 2×2, 2×4 and 4×4 MIMO channels using RZI and OOK modulation were designed and tested. Based on the experimental results, evaluations between BER, distance and displacement were discussed.