  In this demonstration, we will present the world's first molecular
multiple-input multiple-output (MIMO) communication link to deliver two data
streams in a spatial domain. We show that chemical signals such as
concentration gradients could be used in MIMO fashion to transfer sequential
data. Until now it was unclear whether MIMO techniques, which are used
extensively in modern radio communication, could be applied to molecular
communication. In the demonstration, using our devised MIMO apparatus and
carefully designed detection algorithm, we will show that we can achieve about
1.7 times higher data rate than single input single output (SISO) molecular
communication systems.
